| daniel renamed this task from "Provide backwards compatibility views for toolforge replica [MCR]" to "Hide deprecated/unused fields on toolforge replica [MCR]". daniel edited projects, added Cloud-Services; removed Patch-For-Review, MediaWiki-Platform-Team (MWPT-Q4-Apr-Jun-2018), Data-Services. daniel updated the task description. (Show Details) |
CHANGES TO TASK DESCRIPTION
We should try to avoid breaking tools when we roll out the new DB schemaFields that will become unused with MCR schema migration should be hidden in the toolforge replica of the wikidatabases, to avoid tools from reading incomplete/inconsistent data. These fields will eventually be dropped anyway, and will stop to be updated when T198312 is done, which is expected to happen by the end of the year [[https://docs.google.com/spreadsheets/d/1TkznqoaMH6HTQBSMxXPRhSOo8auf1oMLx6c-Cjjf-Sk/edit?ts=5b43c255#gid=0|MCR migration plan]]. Affected fields are:
page.page_content_model
revision.rev_content_model
revision.rev_content_format
revision.rev_text_id
These fields should become unavailable on toolforge soon, following an appropriate notice period.
NOTE: this ticket originally asked for compatibility to be maintained by adding joins to the views for the page and revision table. To that endThis idea has been dropped due to performance issues, we should provide views that emulate the legacy DB schema on Toolforgesee T195515.
page.page_content_model
revision.rev_content_model
revision.rev_content_format
revision.rev_text_id
These fields should become unavailable on toolforge soon, following an appropriate notice period.
NOTE: this ticket originally asked for compatibility to be maintained by adding joins to the views for the page and revision table. To that endThis idea has been dropped due to performance issues, we should provide views that emulate the legacy DB schema on Toolforgesee T195515.
TASK DETAIL
EMAIL PREFERENCES
To: daniel
Cc: Stashbot, jcrespo, gerritbot, Bstorm, Tgr, bd808, Anomie, Aklapper, daniel, AndyTan, Zylc, 1978Gage2001, Lahi, Gq86, GoranSMilovanovic, Chicocvenancio, QZanden, Tbscho, LawExplorer, JJMC89, Agabi10, srodlund, Wikidata-bugs, aude, Gryllida, scfc, Mbch331, Ltrlg, Krenair, chasemp, Gaboe420, Killertrap, Versusxo, Majesticalreaper22, Giuliamocci, Adrian1985, Cpaulf30, Baloch007, Darkminds3113, Bsandipan, Lordiis, Adik2382, Th3d3v1ls, Ramalepe, Liugev6, Lewizho99, Maathavan, mys_721tx, Fjalapeno
Cc: Stashbot, jcrespo, gerritbot, Bstorm, Tgr, bd808, Anomie, Aklapper, daniel, AndyTan, Zylc, 1978Gage2001, Lahi, Gq86, GoranSMilovanovic, Chicocvenancio, QZanden, Tbscho, LawExplorer, JJMC89, Agabi10, srodlund, Wikidata-bugs, aude, Gryllida, scfc, Mbch331, Ltrlg, Krenair, chasemp, Gaboe420, Killertrap, Versusxo, Majesticalreaper22, Giuliamocci, Adrian1985, Cpaulf30, Baloch007, Darkminds3113, Bsandipan, Lordiis, Adik2382, Th3d3v1ls, Ramalepe, Liugev6, Lewizho99, Maathavan, mys_721tx, Fjalapeno
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