Issue #3312733 by benjifisher, quietone, longwave, mikelutz, smustgrave: SQL migrations cannot be instantiated if database is not available and Node, Migrate Drupal modules are enabled

Revert "Issue #3312733 by benjifisher, quietone, mikelutz, smustgrave: SQL migrations cannot be instantiated if database is not available and Node, Migrate Drupal modules are enabled"

This reverts commit 3cad0ee9.

Issue #3312733 by benjifisher, quietone, mikelutz, smustgrave: SQL migrations cannot be instantiated if database is not available and Node, Migrate Drupal modules are enabled

Issue #3339373 by alexpott, andypost, mondrake: Drupal\migrate\Plugin\migrate\source\SourcePluginBase::rewind() is rewinding database statements

Issue #3106216 by Spokje, longwave, alexpott, apaderno, Hardik_Patel_12, daffie: Remove unused variables from core

Issue #2719649 by Spokje, harsha012, jofitz, vprocessor, nikitagupta, cburschka, rasikap, hitesh-jain, quietone, longwave, mfernea, andypost, klausi, Malevi4, crazyrohila: Fix 'Drupal.Commenting.InlineComment.SpacingBefore' coding standard

Issue #3190815 by Wim Leers, quietone, NickDickinsonWilde, benjifisher, mikelutz, larowlan: Source count caching broken: impossible to enable source count caching for SqlBase-based source plugins (plus, unneeded cache I/O)

Issue #3189064 by Matroskeen, quietone, benjifisher: Migration sql source plugins can not be serialised because of reference to the database connection

Issue #2787185 by botris, mikelutz, kekkis, mikeryan, lemuelsantos, mvbaalen, quietone, BenStallings, mpotter, heddn: track_changes does not work when the map is joinable

Issue #3015110 by pwolanin, mikelutz, YesCT, quietone: migrate source plugin SqlBase::initializeIterator fails to update rows when high water reset to NULL or 0 and mapJoinable() = TRUE

Issue #2949378 by masipila, heddn, phenaproxima: Document that SqlBase source plugin must use the ignore_map configuraition option if expressions are used in the query

Issue #2918837 by heddn, neclimdul, phenaproxima, quietone, Gábor Hojtsy: SqlBase throws fatal error when extended directly

Issue #2862671 by masipila, Jo Fitzgerald, kleog, phenaproxima, quietone: Add documentation to SqlBase source plugin

Issue #2911306 by alexpott, roynilanjan, mondrake, quicksketch, quietone: Migration module breaks with PHP 7.2 due to inherited method signature differences

Issue #2912120 by phenaproxima, heddn, Berdir, quietone, maxocub: Migrations with a highwater property are not applying correct orderBy() on first run

Issue #2844595 by ohthehugemanatee, Jo Fitzgerald, heddn, moshe weitzman: SQLBase breaks GROUP BY queries

Issue #2865497 by quietone, pritish.kumar, Jo Fitzgerald, moshe weitzman, phenaproxima: Fix high-water condition for new migrations

Issue #2742953 by Jo Fitzgerald, mikeryan, Adita: SqlBase::mapJoinable() should not join across databases with PostgreSQL

Issue #2824267 by quietone, shashikant_chauhan, faline, mikeryan, OnkelTem, ohthehugemanatee: Highwater condition isn't added (on remote databases)

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2830036 by mikeryan, denutkarsh: MigrationPluginManager::getDefinitions() blows up in node derivers

Issue #2485385 by phenaproxima, quietone, alexpott, mikeryan, Berdir, blazey, xjm, hussainweb, catch, heddn, benjy: Move highwater field support to the source plugin, and do not expose its internals on MigrationInterface

Revert "Issue #2485385 by phenaproxima, quietone, Berdir, blazey, hussainweb, mikeryan, benjy, alexpott: Move highwater field support to the source plugin, and do not expose its internals on MigrationInterface"

This reverts commit 0308eb77.

Issue #2485385 by phenaproxima, quietone, Berdir, blazey, hussainweb, mikeryan, benjy, alexpott: Move highwater field support to the source plugin, and do not expose its internals on MigrationInterface

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2676222 by alexpott, johnrosswvsu: Move MigrationInterface out of the migrate\Entity namspace now they are plugins

Issue #2625696 by chx, benjy, alexpott, catch, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities