├── .gitignore ├── LICENSE ├── MANIFEST.in ├── README.md ├── publish.sh ├── sample_config.json ├── setup.cfg ├── setup.py └── target_postgres ├── __init__.py └── db_sync.py /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | *$py.class 5 | 6 | # C extensions 7 | *.so 8 | 9 | # Distribution / packaging 10 | .Python 11 | env/ 12 | build/ 13 | develop-eggs/ 14 | dist/ 15 | downloads/ 16 | eggs/ 17 | .eggs/ 18 | lib/ 19 | lib64/ 20 | parts/ 21 | sdist/ 22 | var/ 23 | *.egg-info/ 24 | .installed.cfg 25 | *.egg 26 | 27 | # PyInstaller 28 | # Usually these files are written by a python script from a template 29 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 30 | *.manifest 31 | *.spec 32 | 33 | # Installer logs 34 | pip-log.txt 35 | pip-delete-this-directory.txt 36 | 37 | # Unit test / coverage reports 38 | htmlcov/ 39 | .tox/ 40 | .coverage 41 | .coverage.* 42 | .cache 43 | nosetests.xml 44 | coverage.xml 45 | *,cover 46 | .hypothesis/ 47 | 48 | # Translations 49 | *.mo 50 | *.pot 51 | 52 | # Django stuff: 53 | *.log 54 | local_settings.py 55 | 56 | # Flask stuff: 57 | instance/ 58 | .webassets-cache 59 | 60 | # Scrapy stuff: 61 | .scrapy 62 | 63 | # Sphinx documentation 64 | docs/_build/ 65 | 66 | # PyBuilder 67 | target/ 68 | 69 | # IPython Notebook 70 | .ipynb_checkpoints 71 | 72 | # pyenv 73 | .python-version 74 | 75 | # celery beat schedule file 76 | celerybeat-schedule 77 | 78 | # dotenv 79 | .env 80 | 81 | # virtualenv 82 | venv/ 83 | ENV/ 84 | 85 | # Spyder project settings 86 | .spyderproject 87 | 88 | # Rope project settings 89 | .ropeproject 90 | 91 | # Mac 92 | ._* 93 | .DS_Store 94 | 95 | # Custom stuff 96 | env.sh 97 | config.json 98 | .autoenv.zsh 99 | 100 | rsa-key 101 | tags 102 | singer-check-tap-data 103 | state.json 104 | .idea/ -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU AFFERO GENERAL PUBLIC LICENSE 2 | Version 3, 19 November 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU Affero General Public License is a free, copyleft license for 11 | software and other kinds of works, specifically designed to ensure 12 | cooperation with the community in the case of network server software. 13 | 14 | The licenses for most software and other practical works are designed 15 | to take away your freedom to share and change the works. By contrast, 16 | our General Public Licenses are intended to guarantee your freedom to 17 | share and change all versions of a program--to make sure it remains free 18 | software for all its users. 19 | 20 | When we speak of free software, we are referring to freedom, not 21 | price. Our General Public Licenses are designed to make sure that you 22 | have the freedom to distribute copies of free software (and charge for 23 | them if you wish), that you receive source code or can get it if you 24 | want it, that you can change the software or use pieces of it in new 25 | free programs, and that you know you can do these things. 26 | 27 | Developers that use our General Public Licenses protect your rights 28 | with two steps: (1) assert copyright on the software, and (2) offer 29 | you this License which gives you legal permission to copy, distribute 30 | and/or modify the software. 31 | 32 | A secondary benefit of defending all users' freedom is that 33 | improvements made in alternate versions of the program, if they 34 | receive widespread use, become available for other developers to 35 | incorporate. Many developers of free software are heartened and 36 | encouraged by the resulting cooperation. However, in the case of 37 | software used on network servers, this result may fail to come about. 38 | The GNU General Public License permits making a modified version and 39 | letting the public access it on a server without ever releasing its 40 | source code to the public. 41 | 42 | The GNU Affero General Public License is designed specifically to 43 | ensure that, in such cases, the modified source code becomes available 44 | to the community. It requires the operator of a network server to 45 | provide the source code of the modified version running there to the 46 | users of that server. Therefore, public use of a modified version, on 47 | a publicly accessible server, gives the public access to the source 48 | code of the modified version. 49 | 50 | An older license, called the Affero General Public License and 51 | published by Affero, was designed to accomplish similar goals. This is 52 | a different license, not a version of the Affero GPL, but Affero has 53 | released a new version of the Affero GPL which permits relicensing under 54 | this license. 55 | 56 | The precise terms and conditions for copying, distribution and 57 | modification follow. 58 | 59 | TERMS AND CONDITIONS 60 | 61 | 0. Definitions. 62 | 63 | "This License" refers to version 3 of the GNU Affero General Public License. 64 | 65 | "Copyright" also means copyright-like laws that apply to other kinds of 66 | works, such as semiconductor masks. 67 | 68 | "The Program" refers to any copyrightable work licensed under this 69 | License. Each licensee is addressed as "you". "Licensees" and 70 | "recipients" may be individuals or organizations. 71 | 72 | To "modify" a work means to copy from or adapt all or part of the work 73 | in a fashion requiring copyright permission, other than the making of an 74 | exact copy. The resulting work is called a "modified version" of the 75 | earlier work or a work "based on" the earlier work. 76 | 77 | A "covered work" means either the unmodified Program or a work based 78 | on the Program. 79 | 80 | To "propagate" a work means to do anything with it that, without 81 | permission, would make you directly or secondarily liable for 82 | infringement under applicable copyright law, except executing it on a 83 | computer or modifying a private copy. Propagation includes copying, 84 | distribution (with or without modification), making available to the 85 | public, and in some countries other activities as well. 86 | 87 | To "convey" a work means any kind of propagation that enables other 88 | parties to make or receive copies. Mere interaction with a user through 89 | a computer network, with no transfer of a copy, is not conveying. 90 | 91 | An interactive user interface displays "Appropriate Legal Notices" 92 | to the extent that it includes a convenient and prominently visible 93 | feature that (1) displays an appropriate copyright notice, and (2) 94 | tells the user that there is no warranty for the work (except to the 95 | extent that warranties are provided), that licensees may convey the 96 | work under this License, and how to view a copy of this License. If 97 | the interface presents a list of user commands or options, such as a 98 | menu, a prominent item in the list meets this criterion. 99 | 100 | 1. Source Code. 101 | 102 | The "source code" for a work means the preferred form of the work 103 | for making modifications to it. "Object code" means any non-source 104 | form of a work. 105 | 106 | A "Standard Interface" means an interface that either is an official 107 | standard defined by a recognized standards body, or, in the case of 108 | interfaces specified for a particular programming language, one that 109 | is widely used among developers working in that language. 110 | 111 | The "System Libraries" of an executable work include anything, other 112 | than the work as a whole, that (a) is included in the normal form of 113 | packaging a Major Component, but which is not part of that Major 114 | Component, and (b) serves only to enable use of the work with that 115 | Major Component, or to implement a Standard Interface for which an 116 | implementation is available to the public in source code form. A 117 | "Major Component", in this context, means a major essential component 118 | (kernel, window system, and so on) of the specific operating system 119 | (if any) on which the executable work runs, or a compiler used to 120 | produce the work, or an object code interpreter used to run it. 121 | 122 | The "Corresponding Source" for a work in object code form means all 123 | the source code needed to generate, install, and (for an executable 124 | work) run the object code and to modify the work, including scripts to 125 | control those activities. However, it does not include the work's 126 | System Libraries, or general-purpose tools or generally available free 127 | programs which are used unmodified in performing those activities but 128 | which are not part of the work. For example, Corresponding Source 129 | includes interface definition files associated with source files for 130 | the work, and the source code for shared libraries and dynamically 131 | linked subprograms that the work is specifically designed to require, 132 | such as by intimate data communication or control flow between those 133 | subprograms and other parts of the work. 134 | 135 | The Corresponding Source need not include anything that users 136 | can regenerate automatically from other parts of the Corresponding 137 | Source. 138 | 139 | The Corresponding Source for a work in source code form is that 140 | same work. 141 | 142 | 2. Basic Permissions. 143 | 144 | All rights granted under this License are granted for the term of 145 | copyright on the Program, and are irrevocable provided the stated 146 | conditions are met. This License explicitly affirms your unlimited 147 | permission to run the unmodified Program. The output from running a 148 | covered work is covered by this License only if the output, given its 149 | content, constitutes a covered work. This License acknowledges your 150 | rights of fair use or other equivalent, as provided by copyright law. 151 | 152 | You may make, run and propagate covered works that you do not 153 | convey, without conditions so long as your license otherwise remains 154 | in force. You may convey covered works to others for the sole purpose 155 | of having them make modifications exclusively for you, or provide you 156 | with facilities for running those works, provided that you comply with 157 | the terms of this License in conveying all material for which you do 158 | not control copyright. Those thus making or running the covered works 159 | for you must do so exclusively on your behalf, under your direction 160 | and control, on terms that prohibit them from making any copies of 161 | your copyrighted material outside their relationship with you. 162 | 163 | Conveying under any other circumstances is permitted solely under 164 | the conditions stated below. Sublicensing is not allowed; section 10 165 | makes it unnecessary. 166 | 167 | 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 168 | 169 | No covered work shall be deemed part of an effective technological 170 | measure under any applicable law fulfilling obligations under article 171 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or 172 | similar laws prohibiting or restricting circumvention of such 173 | measures. 174 | 175 | When you convey a covered work, you waive any legal power to forbid 176 | circumvention of technological measures to the extent such circumvention 177 | is effected by exercising rights under this License with respect to 178 | the covered work, and you disclaim any intention to limit operation or 179 | modification of the work as a means of enforcing, against the work's 180 | users, your or third parties' legal rights to forbid circumvention of 181 | technological measures. 182 | 183 | 4. Conveying Verbatim Copies. 184 | 185 | You may convey verbatim copies of the Program's source code as you 186 | receive it, in any medium, provided that you conspicuously and 187 | appropriately publish on each copy an appropriate copyright notice; 188 | keep intact all notices stating that this License and any 189 | non-permissive terms added in accord with section 7 apply to the code; 190 | keep intact all notices of the absence of any warranty; and give all 191 | recipients a copy of this License along with the Program. 192 | 193 | You may charge any price or no price for each copy that you convey, 194 | and you may offer support or warranty protection for a fee. 195 | 196 | 5. Conveying Modified Source Versions. 197 | 198 | You may convey a work based on the Program, or the modifications to 199 | produce it from the Program, in the form of source code under the 200 | terms of section 4, provided that you also meet all of these conditions: 201 | 202 | a) The work must carry prominent notices stating that you modified 203 | it, and giving a relevant date. 204 | 205 | b) The work must carry prominent notices stating that it is 206 | released under this License and any conditions added under section 207 | 7. This requirement modifies the requirement in section 4 to 208 | "keep intact all notices". 209 | 210 | c) You must license the entire work, as a whole, under this 211 | License to anyone who comes into possession of a copy. This 212 | License will therefore apply, along with any applicable section 7 213 | additional terms, to the whole of the work, and all its parts, 214 | regardless of how they are packaged. This License gives no 215 | permission to license the work in any other way, but it does not 216 | invalidate such permission if you have separately received it. 217 | 218 | d) If the work has interactive user interfaces, each must display 219 | Appropriate Legal Notices; however, if the Program has interactive 220 | interfaces that do not display Appropriate Legal Notices, your 221 | work need not make them do so. 222 | 223 | A compilation of a covered work with other separate and independent 224 | works, which are not by their nature extensions of the covered work, 225 | and which are not combined with it such as to form a larger program, 226 | in or on a volume of a storage or distribution medium, is called an 227 | "aggregate" if the compilation and its resulting copyright are not 228 | used to limit the access or legal rights of the compilation's users 229 | beyond what the individual works permit. Inclusion of a covered work 230 | in an aggregate does not cause this License to apply to the other 231 | parts of the aggregate. 232 | 233 | 6. Conveying Non-Source Forms. 234 | 235 | You may convey a covered work in object code form under the terms 236 | of sections 4 and 5, provided that you also convey the 237 | machine-readable Corresponding Source under the terms of this License, 238 | in one of these ways: 239 | 240 | a) Convey the object code in, or embodied in, a physical product 241 | (including a physical distribution medium), accompanied by the 242 | Corresponding Source fixed on a durable physical medium 243 | customarily used for software interchange. 244 | 245 | b) Convey the object code in, or embodied in, a physical product 246 | (including a physical distribution medium), accompanied by a 247 | written offer, valid for at least three years and valid for as 248 | long as you offer spare parts or customer support for that product 249 | model, to give anyone who possesses the object code either (1) a 250 | copy of the Corresponding Source for all the software in the 251 | product that is covered by this License, on a durable physical 252 | medium customarily used for software interchange, for a price no 253 | more than your reasonable cost of physically performing this 254 | conveying of source, or (2) access to copy the 255 | Corresponding Source from a network server at no charge. 256 | 257 | c) Convey individual copies of the object code with a copy of the 258 | written offer to provide the Corresponding Source. This 259 | alternative is allowed only occasionally and noncommercially, and 260 | only if you received the object code with such an offer, in accord 261 | with subsection 6b. 262 | 263 | d) Convey the object code by offering access from a designated 264 | place (gratis or for a charge), and offer equivalent access to the 265 | Corresponding Source in the same way through the same place at no 266 | further charge. You need not require recipients to copy the 267 | Corresponding Source along with the object code. If the place to 268 | copy the object code is a network server, the Corresponding Source 269 | may be on a different server (operated by you or a third party) 270 | that supports equivalent copying facilities, provided you maintain 271 | clear directions next to the object code saying where to find the 272 | Corresponding Source. Regardless of what server hosts the 273 | Corresponding Source, you remain obligated to ensure that it is 274 | available for as long as needed to satisfy these requirements. 275 | 276 | e) Convey the object code using peer-to-peer transmission, provided 277 | you inform other peers where the object code and Corresponding 278 | Source of the work are being offered to the general public at no 279 | charge under subsection 6d. 280 | 281 | A separable portion of the object code, whose source code is excluded 282 | from the Corresponding Source as a System Library, need not be 283 | included in conveying the object code work. 284 | 285 | A "User Product" is either (1) a "consumer product", which means any 286 | tangible personal property which is normally used for personal, family, 287 | or household purposes, or (2) anything designed or sold for incorporation 288 | into a dwelling. In determining whether a product is a consumer product, 289 | doubtful cases shall be resolved in favor of coverage. For a particular 290 | product received by a particular user, "normally used" refers to a 291 | typical or common use of that class of product, regardless of the status 292 | of the particular user or of the way in which the particular user 293 | actually uses, or expects or is expected to use, the product. A product 294 | is a consumer product regardless of whether the product has substantial 295 | commercial, industrial or non-consumer uses, unless such uses represent 296 | the only significant mode of use of the product. 297 | 298 | "Installation Information" for a User Product means any methods, 299 | procedures, authorization keys, or other information required to install 300 | and execute modified versions of a covered work in that User Product from 301 | a modified version of its Corresponding Source. The information must 302 | suffice to ensure that the continued functioning of the modified object 303 | code is in no case prevented or interfered with solely because 304 | modification has been made. 305 | 306 | If you convey an object code work under this section in, or with, or 307 | specifically for use in, a User Product, and the conveying occurs as 308 | part of a transaction in which the right of possession and use of the 309 | User Product is transferred to the recipient in perpetuity or for a 310 | fixed term (regardless of how the transaction is characterized), the 311 | Corresponding Source conveyed under this section must be accompanied 312 | by the Installation Information. But this requirement does not apply 313 | if neither you nor any third party retains the ability to install 314 | modified object code on the User Product (for example, the work has 315 | been installed in ROM). 316 | 317 | The requirement to provide Installation Information does not include a 318 | requirement to continue to provide support service, warranty, or updates 319 | for a work that has been modified or installed by the recipient, or for 320 | the User Product in which it has been modified or installed. Access to a 321 | network may be denied when the modification itself materially and 322 | adversely affects the operation of the network or violates the rules and 323 | protocols for communication across the network. 324 | 325 | Corresponding Source conveyed, and Installation Information provided, 326 | in accord with this section must be in a format that is publicly 327 | documented (and with an implementation available to the public in 328 | source code form), and must require no special password or key for 329 | unpacking, reading or copying. 330 | 331 | 7. Additional Terms. 332 | 333 | "Additional permissions" are terms that supplement the terms of this 334 | License by making exceptions from one or more of its conditions. 335 | Additional permissions that are applicable to the entire Program shall 336 | be treated as though they were included in this License, to the extent 337 | that they are valid under applicable law. If additional permissions 338 | apply only to part of the Program, that part may be used separately 339 | under those permissions, but the entire Program remains governed by 340 | this License without regard to the additional permissions. 341 | 342 | When you convey a copy of a covered work, you may at your option 343 | remove any additional permissions from that copy, or from any part of 344 | it. (Additional permissions may be written to require their own 345 | removal in certain cases when you modify the work.) You may place 346 | additional permissions on material, added by you to a covered work, 347 | for which you have or can give appropriate copyright permission. 348 | 349 | Notwithstanding any other provision of this License, for material you 350 | add to a covered work, you may (if authorized by the copyright holders of 351 | that material) supplement the terms of this License with terms: 352 | 353 | a) Disclaiming warranty or limiting liability differently from the 354 | terms of sections 15 and 16 of this License; or 355 | 356 | b) Requiring preservation of specified reasonable legal notices or 357 | author attributions in that material or in the Appropriate Legal 358 | Notices displayed by works containing it; or 359 | 360 | c) Prohibiting misrepresentation of the origin of that material, or 361 | requiring that modified versions of such material be marked in 362 | reasonable ways as different from the original version; or 363 | 364 | d) Limiting the use for publicity purposes of names of licensors or 365 | authors of the material; or 366 | 367 | e) Declining to grant rights under trademark law for use of some 368 | trade names, trademarks, or service marks; or 369 | 370 | f) Requiring indemnification of licensors and authors of that 371 | material by anyone who conveys the material (or modified versions of 372 | it) with contractual assumptions of liability to the recipient, for 373 | any liability that these contractual assumptions directly impose on 374 | those licensors and authors. 375 | 376 | All other non-permissive additional terms are considered "further 377 | restrictions" within the meaning of section 10. If the Program as you 378 | received it, or any part of it, contains a notice stating that it is 379 | governed by this License along with a term that is a further 380 | restriction, you may remove that term. If a license document contains 381 | a further restriction but permits relicensing or conveying under this 382 | License, you may add to a covered work material governed by the terms 383 | of that license document, provided that the further restriction does 384 | not survive such relicensing or conveying. 385 | 386 | If you add terms to a covered work in accord with this section, you 387 | must place, in the relevant source files, a statement of the 388 | additional terms that apply to those files, or a notice indicating 389 | where to find the applicable terms. 390 | 391 | Additional terms, permissive or non-permissive, may be stated in the 392 | form of a separately written license, or stated as exceptions; 393 | the above requirements apply either way. 394 | 395 | 8. Termination. 396 | 397 | You may not propagate or modify a covered work except as expressly 398 | provided under this License. Any attempt otherwise to propagate or 399 | modify it is void, and will automatically terminate your rights under 400 | this License (including any patent licenses granted under the third 401 | paragraph of section 11). 402 | 403 | However, if you cease all violation of this License, then your 404 | license from a particular copyright holder is reinstated (a) 405 | provisionally, unless and until the copyright holder explicitly and 406 | finally terminates your license, and (b) permanently, if the copyright 407 | holder fails to notify you of the violation by some reasonable means 408 | prior to 60 days after the cessation. 409 | 410 | Moreover, your license from a particular copyright holder is 411 | reinstated permanently if the copyright holder notifies you of the 412 | violation by some reasonable means, this is the first time you have 413 | received notice of violation of this License (for any work) from that 414 | copyright holder, and you cure the violation prior to 30 days after 415 | your receipt of the notice. 416 | 417 | Termination of your rights under this section does not terminate the 418 | licenses of parties who have received copies or rights from you under 419 | this License. If your rights have been terminated and not permanently 420 | reinstated, you do not qualify to receive new licenses for the same 421 | material under section 10. 422 | 423 | 9. Acceptance Not Required for Having Copies. 424 | 425 | You are not required to accept this License in order to receive or 426 | run a copy of the Program. Ancillary propagation of a covered work 427 | occurring solely as a consequence of using peer-to-peer transmission 428 | to receive a copy likewise does not require acceptance. However, 429 | nothing other than this License grants you permission to propagate or 430 | modify any covered work. These actions infringe copyright if you do 431 | not accept this License. Therefore, by modifying or propagating a 432 | covered work, you indicate your acceptance of this License to do so. 433 | 434 | 10. Automatic Licensing of Downstream Recipients. 435 | 436 | Each time you convey a covered work, the recipient automatically 437 | receives a license from the original licensors, to run, modify and 438 | propagate that work, subject to this License. You are not responsible 439 | for enforcing compliance by third parties with this License. 440 | 441 | An "entity transaction" is a transaction transferring control of an 442 | organization, or substantially all assets of one, or subdividing an 443 | organization, or merging organizations. If propagation of a covered 444 | work results from an entity transaction, each party to that 445 | transaction who receives a copy of the work also receives whatever 446 | licenses to the work the party's predecessor in interest had or could 447 | give under the previous paragraph, plus a right to possession of the 448 | Corresponding Source of the work from the predecessor in interest, if 449 | the predecessor has it or can get it with reasonable efforts. 450 | 451 | You may not impose any further restrictions on the exercise of the 452 | rights granted or affirmed under this License. For example, you may 453 | not impose a license fee, royalty, or other charge for exercise of 454 | rights granted under this License, and you may not initiate litigation 455 | (including a cross-claim or counterclaim in a lawsuit) alleging that 456 | any patent claim is infringed by making, using, selling, offering for 457 | sale, or importing the Program or any portion of it. 458 | 459 | 11. Patents. 460 | 461 | A "contributor" is a copyright holder who authorizes use under this 462 | License of the Program or a work on which the Program is based. The 463 | work thus licensed is called the contributor's "contributor version". 464 | 465 | A contributor's "essential patent claims" are all patent claims 466 | owned or controlled by the contributor, whether already acquired or 467 | hereafter acquired, that would be infringed by some manner, permitted 468 | by this License, of making, using, or selling its contributor version, 469 | but do not include claims that would be infringed only as a 470 | consequence of further modification of the contributor version. For 471 | purposes of this definition, "control" includes the right to grant 472 | patent sublicenses in a manner consistent with the requirements of 473 | this License. 474 | 475 | Each contributor grants you a non-exclusive, worldwide, royalty-free 476 | patent license under the contributor's essential patent claims, to 477 | make, use, sell, offer for sale, import and otherwise run, modify and 478 | propagate the contents of its contributor version. 479 | 480 | In the following three paragraphs, a "patent license" is any express 481 | agreement or commitment, however denominated, not to enforce a patent 482 | (such as an express permission to practice a patent or covenant not to 483 | sue for patent infringement). To "grant" such a patent license to a 484 | party means to make such an agreement or commitment not to enforce a 485 | patent against the party. 486 | 487 | If you convey a covered work, knowingly relying on a patent license, 488 | and the Corresponding Source of the work is not available for anyone 489 | to copy, free of charge and under the terms of this License, through a 490 | publicly available network server or other readily accessible means, 491 | then you must either (1) cause the Corresponding Source to be so 492 | available, or (2) arrange to deprive yourself of the benefit of the 493 | patent license for this particular work, or (3) arrange, in a manner 494 | consistent with the requirements of this License, to extend the patent 495 | license to downstream recipients. "Knowingly relying" means you have 496 | actual knowledge that, but for the patent license, your conveying the 497 | covered work in a country, or your recipient's use of the covered work 498 | in a country, would infringe one or more identifiable patents in that 499 | country that you have reason to believe are valid. 500 | 501 | If, pursuant to or in connection with a single transaction or 502 | arrangement, you convey, or propagate by procuring conveyance of, a 503 | covered work, and grant a patent license to some of the parties 504 | receiving the covered work authorizing them to use, propagate, modify 505 | or convey a specific copy of the covered work, then the patent license 506 | you grant is automatically extended to all recipients of the covered 507 | work and works based on it. 508 | 509 | A patent license is "discriminatory" if it does not include within 510 | the scope of its coverage, prohibits the exercise of, or is 511 | conditioned on the non-exercise of one or more of the rights that are 512 | specifically granted under this License. You may not convey a covered 513 | work if you are a party to an arrangement with a third party that is 514 | in the business of distributing software, under which you make payment 515 | to the third party based on the extent of your activity of conveying 516 | the work, and under which the third party grants, to any of the 517 | parties who would receive the covered work from you, a discriminatory 518 | patent license (a) in connection with copies of the covered work 519 | conveyed by you (or copies made from those copies), or (b) primarily 520 | for and in connection with specific products or compilations that 521 | contain the covered work, unless you entered into that arrangement, 522 | or that patent license was granted, prior to 28 March 2007. 523 | 524 | Nothing in this License shall be construed as excluding or limiting 525 | any implied license or other defenses to infringement that may 526 | otherwise be available to you under applicable patent law. 527 | 528 | 12. No Surrender of Others' Freedom. 529 | 530 | If conditions are imposed on you (whether by court order, agreement or 531 | otherwise) that contradict the conditions of this License, they do not 532 | excuse you from the conditions of this License. If you cannot convey a 533 | covered work so as to satisfy simultaneously your obligations under this 534 | License and any other pertinent obligations, then as a consequence you may 535 | not convey it at all. For example, if you agree to terms that obligate you 536 | to collect a royalty for further conveying from those to whom you convey 537 | the Program, the only way you could satisfy both those terms and this 538 | License would be to refrain entirely from conveying the Program. 539 | 540 | 13. Remote Network Interaction; Use with the GNU General Public License. 541 | 542 | Notwithstanding any other provision of this License, if you modify the 543 | Program, your modified version must prominently offer all users 544 | interacting with it remotely through a computer network (if your version 545 | supports such interaction) an opportunity to receive the Corresponding 546 | Source of your version by providing access to the Corresponding Source 547 | from a network server at no charge, through some standard or customary 548 | means of facilitating copying of software. This Corresponding Source 549 | shall include the Corresponding Source for any work covered by version 3 550 | of the GNU General Public License that is incorporated pursuant to the 551 | following paragraph. 552 | 553 | Notwithstanding any other provision of this License, you have 554 | permission to link or combine any covered work with a work licensed 555 | under version 3 of the GNU General Public License into a single 556 | combined work, and to convey the resulting work. The terms of this 557 | License will continue to apply to the part which is the covered work, 558 | but the work with which it is combined will remain governed by version 559 | 3 of the GNU General Public License. 560 | 561 | 14. Revised Versions of this License. 562 | 563 | The Free Software Foundation may publish revised and/or new versions of 564 | the GNU Affero General Public License from time to time. Such new versions 565 | will be similar in spirit to the present version, but may differ in detail to 566 | address new problems or concerns. 567 | 568 | Each version is given a distinguishing version number. If the 569 | Program specifies that a certain numbered version of the GNU Affero General 570 | Public License "or any later version" applies to it, you have the 571 | option of following the terms and conditions either of that numbered 572 | version or of any later version published by the Free Software 573 | Foundation. If the Program does not specify a version number of the 574 | GNU Affero General Public License, you may choose any version ever published 575 | by the Free Software Foundation. 576 | 577 | If the Program specifies that a proxy can decide which future 578 | versions of the GNU Affero General Public License can be used, that proxy's 579 | public statement of acceptance of a version permanently authorizes you 580 | to choose that version for the Program. 581 | 582 | Later license versions may give you additional or different 583 | permissions. However, no additional obligations are imposed on any 584 | author or copyright holder as a result of your choosing to follow a 585 | later version. 586 | 587 | 15. Disclaimer of Warranty. 588 | 589 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 590 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 591 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 592 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 593 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 594 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 595 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 596 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 597 | 598 | 16. Limitation of Liability. 599 | 600 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 601 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 602 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 603 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 604 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 605 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 606 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 607 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 608 | SUCH DAMAGES. 609 | 610 | 17. Interpretation of Sections 15 and 16. 611 | 612 | If the disclaimer of warranty and limitation of liability provided 613 | above cannot be given local legal effect according to their terms, 614 | reviewing courts shall apply local law that most closely approximates 615 | an absolute waiver of all civil liability in connection with the 616 | Program, unless a warranty or assumption of liability accompanies a 617 | copy of the Program in return for a fee. 618 | 619 | END OF TERMS AND CONDITIONS 620 | 621 | -------------------------------------------------------------------------------- /MANIFEST.in: -------------------------------------------------------------------------------- 1 | include LICENSE 2 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # target-postgres 2 | 3 | This is a [Singer](https://singer.io) target for Postgres 4 | following the [Singer spec](https://github.com/singer-io/getting-started/blob/master/SPEC.md). 5 | -------------------------------------------------------------------------------- /publish.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | rm -Rf dist 4 | ./setup.py sdist bdist_wheel 5 | twine upload dist/* -------------------------------------------------------------------------------- /sample_config.json: -------------------------------------------------------------------------------- 1 | { 2 | "host": "localhost", 3 | "user": "test", 4 | "port": "5432", 5 | "password": "", 6 | "dbname": "target_test", 7 | "schema": "test_schema" 8 | } 9 | -------------------------------------------------------------------------------- /setup.cfg: -------------------------------------------------------------------------------- 1 | [metadata] 2 | description-file = README.md 3 | -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | from setuptools import setup 3 | 4 | setup( 5 | name="target-postgres", 6 | version="1.1.3", 7 | description="Singer.io target for Postgres", 8 | author="Statsbot", 9 | url="https://statsbot.co", 10 | classifiers=["Programming Language :: Python :: 3 :: Only"], 11 | py_modules=["target_postgres"], 12 | install_requires=[ 13 | "singer-python==5.1.1", 14 | "psycopg2==2.7.5", 15 | "inflection==0.3.1" 16 | ], 17 | entry_points=""" 18 | [console_scripts] 19 | target-postgres=target_postgres:main 20 | """, 21 | packages=["target_postgres"], 22 | package_data = {}, 23 | include_package_data=True, 24 | ) 25 | -------------------------------------------------------------------------------- /target_postgres/__init__.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | 3 | import argparse 4 | import io 5 | import os 6 | import sys 7 | import json 8 | import threading 9 | import http.client 10 | import urllib 11 | from datetime import datetime 12 | import collections 13 | from tempfile import TemporaryFile 14 | 15 | import pkg_resources 16 | from jsonschema.validators import Draft4Validator 17 | import singer 18 | from target_postgres.db_sync import DbSync 19 | 20 | logger = singer.get_logger() 21 | 22 | 23 | def emit_state(state): 24 | if state is not None: 25 | line = json.dumps(state) 26 | logger.debug('Emitting state {}'.format(line)) 27 | sys.stdout.write("{}\n".format(line)) 28 | sys.stdout.flush() 29 | 30 | 31 | def persist_lines(config, lines): 32 | state = None 33 | schemas = {} 34 | key_properties = {} 35 | headers = {} 36 | validators = {} 37 | csv_files_to_load = {} 38 | row_count = {} 39 | stream_to_sync = {} 40 | primary_key_exists = {} 41 | batch_size = config['batch_size'] if 'batch_size' in config else 100000 42 | 43 | now = datetime.now().strftime('%Y%m%dT%H%M%S') 44 | 45 | # Loop over lines from stdin 46 | for line in lines: 47 | try: 48 | o = json.loads(line) 49 | except json.decoder.JSONDecodeError: 50 | logger.error("Unable to parse:\n{}".format(line)) 51 | raise 52 | 53 | if 'type' not in o: 54 | raise Exception("Line is missing required key 'type': {}".format(line)) 55 | t = o['type'] 56 | 57 | if t == 'RECORD': 58 | if 'stream' not in o: 59 | raise Exception("Line is missing required key 'stream': {}".format(line)) 60 | if o['stream'] not in schemas: 61 | raise Exception( 62 | "A record for stream {} was encountered before a corresponding schema".format(o['stream'])) 63 | 64 | # Get schema for this record's stream 65 | stream = o['stream'] 66 | 67 | # Validate record 68 | validators[stream].validate(o['record']) 69 | 70 | sync = stream_to_sync[stream] 71 | 72 | primary_key_string = sync.record_primary_key_string(o['record']) 73 | if stream not in primary_key_exists: 74 | primary_key_exists[stream] = {} 75 | if primary_key_string and primary_key_string in primary_key_exists[stream]: 76 | flush_records(o, csv_files_to_load, row_count, primary_key_exists, sync) 77 | 78 | csv_line = sync.record_to_csv_line(o['record']) 79 | csv_files_to_load[o['stream']].write(bytes(csv_line + '\n', 'UTF-8')) 80 | row_count[o['stream']] += 1 81 | if primary_key_string: 82 | primary_key_exists[stream][primary_key_string] = True 83 | 84 | if row_count[o['stream']] >= batch_size: 85 | flush_records(o, csv_files_to_load, row_count, primary_key_exists, sync) 86 | 87 | state = None 88 | elif t == 'STATE': 89 | logger.debug('Setting state to {}'.format(o['value'])) 90 | state = o['value'] 91 | elif t == 'SCHEMA': 92 | if 'stream' not in o: 93 | raise Exception("Line is missing required key 'stream': {}".format(line)) 94 | stream = o['stream'] 95 | schemas[stream] = o 96 | validators[stream] = Draft4Validator(o['schema']) 97 | if 'key_properties' not in o: 98 | raise Exception("key_properties field is required") 99 | key_properties[stream] = o['key_properties'] 100 | stream_to_sync[stream] = DbSync(config, o) 101 | stream_to_sync[stream].create_schema_if_not_exists() 102 | stream_to_sync[stream].sync_table() 103 | row_count[stream] = 0 104 | csv_files_to_load[stream] = TemporaryFile(mode='w+b') 105 | elif t == 'ACTIVATE_VERSION': 106 | logger.debug('ACTIVATE_VERSION message') 107 | else: 108 | raise Exception("Unknown message type {} in message {}" 109 | .format(o['type'], o)) 110 | 111 | for (stream_name, count) in row_count.items(): 112 | if count > 0: 113 | stream_to_sync[stream_name].load_csv(csv_files_to_load[stream_name], count) 114 | 115 | return state 116 | 117 | 118 | def flush_records(o, csv_files_to_load, row_count, primary_key_exists, sync): 119 | stream = o['stream'] 120 | sync.load_csv(csv_files_to_load[stream], row_count[stream]) 121 | row_count[stream] = 0 122 | primary_key_exists[stream] = {} 123 | csv_files_to_load[stream] = TemporaryFile(mode='w+b') 124 | 125 | 126 | def main(): 127 | parser = argparse.ArgumentParser() 128 | parser.add_argument('-c', '--config', help='Config file') 129 | args = parser.parse_args() 130 | 131 | if args.config: 132 | with open(args.config) as input: 133 | config = json.load(input) 134 | else: 135 | config = {} 136 | 137 | input = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8') 138 | state = persist_lines(config, input) 139 | 140 | emit_state(state) 141 | logger.debug("Exiting normally") 142 | 143 | 144 | if __name__ == '__main__': 145 | main() 146 | -------------------------------------------------------------------------------- /target_postgres/db_sync.py: -------------------------------------------------------------------------------- 1 | import json 2 | import psycopg2 3 | import psycopg2.extras 4 | import singer 5 | import collections 6 | import inflection 7 | import re 8 | import itertools 9 | 10 | logger = singer.get_logger() 11 | 12 | 13 | def column_type(schema_property): 14 | property_type = schema_property['type'] 15 | property_format = schema_property['format'] if 'format' in schema_property else None 16 | if 'object' in property_type or 'array' in property_type: 17 | return 'jsonb' 18 | elif property_format == 'date-time': 19 | return 'timestamp without time zone' 20 | elif 'number' in property_type: 21 | return 'numeric' 22 | elif 'integer' in property_type and 'string' in property_type: 23 | return 'character varying' 24 | elif 'integer' in property_type: 25 | return 'bigint' 26 | elif 'boolean' in property_type: 27 | return 'boolean' 28 | else: 29 | return 'character varying' 30 | 31 | 32 | def inflect_column_name(name): 33 | name = re.sub(r"([A-Z]+)_([A-Z][a-z])", r'\1__\2', name) 34 | name = re.sub(r"([a-z\d])_([A-Z])", r'\1__\2', name) 35 | return inflection.underscore(name) 36 | 37 | 38 | def safe_column_name(name): 39 | return '"{}"'.format(name) 40 | 41 | 42 | def column_clause(name, schema_property): 43 | return '{} {}'.format(safe_column_name(name), column_type(schema_property)) 44 | 45 | 46 | def flatten_key(k, parent_key, sep): 47 | full_key = parent_key + [k] 48 | inflected_key = [inflect_column_name(n) for n in full_key] 49 | reducer_index = 0 50 | while len(sep.join(inflected_key)) >= 63 and reducer_index < len(inflected_key): 51 | reduced_key = re.sub(r'[a-z]', '', inflection.camelize(inflected_key[reducer_index])) 52 | inflected_key[reducer_index] = \ 53 | (reduced_key if len(reduced_key) > 1 else inflected_key[reducer_index][0:3]).lower() 54 | reducer_index += 1 55 | 56 | return sep.join(inflected_key) 57 | 58 | 59 | def flatten_schema(d, parent_key=[], sep='__'): 60 | items = [] 61 | for k, v in d['properties'].items(): 62 | new_key = flatten_key(k, parent_key, sep) 63 | if 'type' in v.keys(): 64 | if 'object' in v['type']: 65 | items.extend(flatten_schema(v, parent_key + [k], sep=sep).items()) 66 | else: 67 | items.append((new_key, v)) 68 | else: 69 | if list(v.values())[0][0]['type'] == 'string': 70 | list(v.values())[0][0]['type'] = ['null', 'string'] 71 | items.append((new_key, list(v.values())[0][0])) 72 | elif list(v.values())[0][0]['type'] == 'array': 73 | list(v.values())[0][0]['type'] = ['null', 'array'] 74 | items.append((new_key, list(v.values())[0][0])) 75 | 76 | key_func = lambda item: item[0] 77 | sorted_items = sorted(items, key=key_func) 78 | for k, g in itertools.groupby(sorted_items, key=key_func): 79 | if len(list(g)) > 1: 80 | raise ValueError('Duplicate column name produced in schema: {}'.format(k)) 81 | 82 | return dict(sorted_items) 83 | 84 | 85 | def flatten_record(d, parent_key=[], sep='__'): 86 | items = [] 87 | for k, v in d.items(): 88 | new_key = flatten_key(k, parent_key, sep) 89 | if isinstance(v, collections.MutableMapping): 90 | items.extend(flatten_record(v, parent_key + [k], sep=sep).items()) 91 | else: 92 | items.append((new_key, json.dumps(v) if type(v) is list else v)) 93 | return dict(items) 94 | 95 | 96 | def primary_column_names(stream_schema_message): 97 | return [safe_column_name(inflect_column_name(p)) for p in stream_schema_message['key_properties']] 98 | 99 | 100 | class DbSync: 101 | def __init__(self, connection_config, stream_schema_message): 102 | self.connection_config = connection_config 103 | self.schema_name = self.connection_config['schema'] 104 | self.stream_schema_message = stream_schema_message 105 | self.flatten_schema = flatten_schema(stream_schema_message['schema']) 106 | 107 | def open_connection(self): 108 | conn_string = "host='{}' dbname='{}' user='{}' password='{}' port='{}'".format( 109 | self.connection_config['host'], 110 | self.connection_config['dbname'], 111 | self.connection_config['user'], 112 | self.connection_config['password'], 113 | self.connection_config['port'] 114 | ) 115 | 116 | return psycopg2.connect(conn_string) 117 | 118 | def query(self, query, params=None): 119 | with self.open_connection() as connection: 120 | with connection.cursor(cursor_factory=psycopg2.extras.DictCursor) as cur: 121 | cur.execute( 122 | query, 123 | params 124 | ) 125 | 126 | if cur.rowcount > 0: 127 | return cur.fetchall() 128 | else: 129 | return [] 130 | 131 | def copy_from(self, file, table): 132 | with self.open_connection() as connection: 133 | with connection.cursor(cursor_factory=psycopg2.extras.DictCursor) as cur: 134 | cur.copy_from(file, table) 135 | 136 | def table_name(self, table_name, is_temporary): 137 | if is_temporary: 138 | return '{}_temp'.format(table_name) 139 | else: 140 | return '{}.{}'.format(self.schema_name, table_name) 141 | 142 | def record_primary_key_string(self, record): 143 | if len(self.stream_schema_message['key_properties']) == 0: 144 | return None 145 | flatten = flatten_record(record) 146 | key_props = [str(flatten[inflect_column_name(p)]) for p in self.stream_schema_message['key_properties']] 147 | return ','.join(key_props) 148 | 149 | def record_to_csv_line(self, record): 150 | flatten = flatten_record(record) 151 | return ','.join( 152 | [ 153 | json.dumps(flatten[name]) if name in flatten and flatten[name] else '' 154 | for name in self.flatten_schema 155 | ] 156 | ) 157 | 158 | def load_csv(self, file, count): 159 | file.seek(0) 160 | stream_schema_message = self.stream_schema_message 161 | stream = stream_schema_message['stream'] 162 | logger.info("Loading {} rows into '{}'".format(count, stream)) 163 | 164 | with self.open_connection() as connection: 165 | with connection.cursor(cursor_factory=psycopg2.extras.DictCursor) as cur: 166 | cur.execute(self.create_table_query(True)) 167 | copy_sql = "COPY {} ({}) FROM STDIN WITH (FORMAT CSV, ESCAPE '\\')".format( 168 | self.table_name(stream, True), 169 | ', '.join(self.column_names()) 170 | ) 171 | logger.info(copy_sql) 172 | cur.copy_expert( 173 | copy_sql, 174 | file 175 | ) 176 | if len(self.stream_schema_message['key_properties']) > 0: 177 | cur.execute(self.update_from_temp_table()) 178 | logger.info(cur.statusmessage) 179 | cur.execute(self.insert_from_temp_table()) 180 | logger.info(cur.statusmessage) 181 | cur.execute(self.drop_temp_table()) 182 | 183 | def insert_from_temp_table(self): 184 | stream_schema_message = self.stream_schema_message 185 | columns = self.column_names() 186 | table = self.table_name(stream_schema_message['stream'], False) 187 | temp_table = self.table_name(stream_schema_message['stream'], True) 188 | 189 | if len(stream_schema_message['key_properties']) == 0: 190 | return """INSERT INTO {} ({}) 191 | (SELECT s.* FROM {} s) 192 | """.format( 193 | table, 194 | ', '.join(columns), 195 | temp_table 196 | ) 197 | 198 | return """INSERT INTO {} ({}) 199 | (SELECT s.* FROM {} s LEFT OUTER JOIN {} t ON {} WHERE {}) 200 | """.format( 201 | table, 202 | ', '.join(columns), 203 | temp_table, 204 | table, 205 | self.primary_key_condition('t'), 206 | self.primary_key_null_condition('t') 207 | ) 208 | 209 | def update_from_temp_table(self): 210 | stream_schema_message = self.stream_schema_message 211 | columns = self.column_names() 212 | table = self.table_name(stream_schema_message['stream'], False) 213 | temp_table = self.table_name(stream_schema_message['stream'], True) 214 | return """UPDATE {} SET {} FROM {} s 215 | WHERE {} 216 | """.format( 217 | table, 218 | ', '.join(['{}=s.{}'.format(c, c) for c in columns]), 219 | temp_table, 220 | self.primary_key_condition(table) 221 | ) 222 | 223 | def primary_key_condition(self, right_table): 224 | stream_schema_message = self.stream_schema_message 225 | names = primary_column_names(stream_schema_message) 226 | return ' AND '.join(['s.{} = {}.{}'.format(c, right_table, c) for c in names]) 227 | 228 | def primary_key_null_condition(self, right_table): 229 | stream_schema_message = self.stream_schema_message 230 | names = primary_column_names(stream_schema_message) 231 | return ' AND '.join(['{}.{} is null'.format(right_table, c) for c in names]) 232 | 233 | def drop_temp_table(self): 234 | stream_schema_message = self.stream_schema_message 235 | temp_table = self.table_name(stream_schema_message['stream'], True) 236 | return "DROP TABLE {}".format(temp_table) 237 | 238 | def column_names(self): 239 | return [safe_column_name(name) for name in self.flatten_schema] 240 | 241 | def create_table_query(self, is_temporary=False): 242 | stream_schema_message = self.stream_schema_message 243 | columns = [ 244 | column_clause( 245 | name, 246 | schema 247 | ) 248 | for (name, schema) in self.flatten_schema.items() 249 | ] 250 | 251 | primary_key = ["PRIMARY KEY ({})".format(', '.join(primary_column_names(stream_schema_message)))] \ 252 | if len(stream_schema_message['key_properties']) else [] 253 | 254 | return 'CREATE {}TABLE {} ({})'.format( 255 | 'TEMP ' if is_temporary else '', 256 | self.table_name(stream_schema_message['stream'], is_temporary), 257 | ', '.join(columns + primary_key) 258 | ) 259 | 260 | def create_schema_if_not_exists(self): 261 | schema_name = self.connection_config['schema'] 262 | schema_rows = self.query( 263 | 'SELECT schema_name FROM information_schema.schemata WHERE schema_name = %s', 264 | (schema_name,) 265 | ) 266 | 267 | if len(schema_rows) == 0: 268 | self.query("CREATE SCHEMA IF NOT EXISTS {}".format(schema_name)) 269 | 270 | def get_tables(self): 271 | return self.query( 272 | 'SELECT table_name FROM information_schema.tables WHERE table_schema = %s', 273 | (self.schema_name,) 274 | ) 275 | 276 | def get_table_columns(self, table_name): 277 | return self.query("""SELECT column_name, data_type 278 | FROM information_schema.columns 279 | WHERE lower(table_name) = %s AND lower(table_schema) = %s""", (table_name.lower(), self.schema_name.lower())) 280 | 281 | def update_columns(self): 282 | stream_schema_message = self.stream_schema_message 283 | stream = stream_schema_message['stream'] 284 | columns = self.get_table_columns(stream) 285 | columns_dict = {column['column_name'].lower(): column for column in columns} 286 | 287 | columns_to_add = [ 288 | column_clause( 289 | name, 290 | properties_schema 291 | ) 292 | for (name, properties_schema) in self.flatten_schema.items() 293 | if name.lower() not in columns_dict 294 | ] 295 | 296 | for column in columns_to_add: 297 | self.add_column(column, stream) 298 | 299 | columns_to_replace = [ 300 | (safe_column_name(name), column_clause( 301 | name, 302 | properties_schema 303 | )) 304 | for (name, properties_schema) in self.flatten_schema.items() 305 | if name.lower() in columns_dict and 306 | columns_dict[name.lower()]['data_type'].lower() != column_type(properties_schema).lower() 307 | ] 308 | 309 | for (column_name, column) in columns_to_replace: 310 | self.drop_column(column_name, stream) 311 | self.add_column(column, stream) 312 | 313 | def add_column(self, column, stream): 314 | add_column = "ALTER TABLE {} ADD COLUMN {}".format(self.table_name(stream, False), column) 315 | logger.info('Adding column: {}'.format(add_column)) 316 | self.query(add_column) 317 | 318 | def drop_column(self, column_name, stream): 319 | drop_column = "ALTER TABLE {} DROP COLUMN {}".format(self.table_name(stream, False), column_name) 320 | logger.info('Dropping column: {}'.format(drop_column)) 321 | self.query(drop_column) 322 | 323 | def sync_table(self): 324 | stream_schema_message = self.stream_schema_message 325 | stream = stream_schema_message['stream'] 326 | found_tables = [table for table in (self.get_tables()) if table['table_name'].lower() == stream.lower()] 327 | if len(found_tables) == 0: 328 | query = self.create_table_query() 329 | logger.info("Table '{}' does not exist. Creating... {}".format(stream, query)) 330 | self.query(query) 331 | else: 332 | logger.info("Table '{}' exists".format(stream)) 333 | self.update_columns() 334 | --------------------------------------------------------------------------------