* Remove legacy quoteColumnName() utility
Since Mattermost only supports PostgreSQL, the quoteColumnName() helper
that was designed to handle database-specific column quoting is no longer
needed. The function was a no-op that simply returned the column name
unchanged.
Remove the function from utils.go and update status_store.go to use
the "Manual" column name directly.
* Remove legacy driver checks from store.go
Since Mattermost only supports PostgreSQL, remove conditional checks
for different database drivers:
- Simplify specialSearchChars() to always return PostgreSQL-compatible chars
- Remove driver check from computeBinaryParam()
- Remove driver check from computeDefaultTextSearchConfig()
- Simplify GetDbVersion() to use PostgreSQL syntax directly
- Remove switch statement from ensureMinimumDBVersion()
- Remove unused driver parameter from versionString()
* Remove MySQL alternatives for batch delete operations
Since Mattermost only supports PostgreSQL, remove the MySQL-specific
DELETE...LIMIT syntax and keep only the PostgreSQL array-based approach:
- reaction_store.go: Use PostgreSQL array syntax for PermanentDeleteBatch
- file_info_store.go: Use PostgreSQL array syntax for PermanentDeleteBatch
- preference_store.go: Use PostgreSQL tuple IN subquery for DeleteInvalidVisibleDmsGms
* Remove MySQL alternatives for UPDATE...FROM syntax
Since Mattermost only supports PostgreSQL, remove the MySQL-specific
UPDATE syntax that joins tables differently:
- thread_store.go: Use PostgreSQL UPDATE...FROM syntax in
MarkAllAsReadByChannels and MarkAllAsReadByTeam
- post_store.go: Use PostgreSQL UPDATE...FROM syntax in deleteThreadFiles
* Remove MySQL alternatives for JSON and subquery operations
Since Mattermost only supports PostgreSQL, remove the MySQL-specific
JSON and subquery syntax:
- thread_store.go: Use PostgreSQL JSONB operators for updating participants
- access_control_policy_store.go: Use PostgreSQL JSONB @> operator for
querying JSON imports
- session_store.go: Use PostgreSQL subquery syntax for Cleanup
- job_store.go: Use PostgreSQL subquery syntax for Cleanup
* Remove MySQL alternatives for CTE queries
Since Mattermost only supports PostgreSQL, simplify code that
uses CTEs (Common Table Expressions):
- channel_store.go: Remove MySQL CASE-based fallback in
UpdateLastViewedAt and use PostgreSQL CTE exclusively
- draft_store.go: Remove driver checks in DeleteEmptyDraftsByCreateAtAndUserId,
DeleteOrphanDraftsByCreateAtAndUserId, and determineMaxDraftSize
* Remove driver checks in migrate.go and schema_dump.go
Simplify migration code to use PostgreSQL driver directly since
PostgreSQL is the only supported database.
* Remove driver checks in sqlx_wrapper.go
Always apply lowercase named parameter transformation since PostgreSQL
is the only supported database.
* Remove driver checks in user_store.go
Simplify user store functions to use PostgreSQL-only code paths:
- Remove isPostgreSQL parameter from helper functions
- Use LEFT JOIN pattern instead of subqueries for bot filtering
- Always use case-insensitive LIKE with lower() for search
- Remove MySQL-specific role filtering alternatives
* Remove driver checks in post_store.go
Simplify post_store.go to use PostgreSQL-only code paths:
- Inline getParentsPostsPostgreSQL into getParentsPosts
- Use PostgreSQL TO_CHAR/TO_TIMESTAMP for date formatting in analytics
- Use PostgreSQL array syntax for batch deletes
- Simplify determineMaxPostSize to always use information_schema
- Use PostgreSQL jsonb subtraction for thread participants
- Always execute RefreshPostStats (PostgreSQL materialized views)
- Use materialized views for AnalyticsPostCountsByDay
- Simplify AnalyticsPostCountByTeam to always use countByTeam
* Remove driver checks in channel_store.go
Simplify channel_store.go to use PostgreSQL-only code paths:
- Always use sq.Dollar.ReplacePlaceholders for UNION queries
- Use PostgreSQL LEFT JOIN for retention policy exclusion
- Use PostgreSQL jsonb @> operator for access control policy imports
- Simplify buildLIKEClause to always use LOWER() for case-insensitive search
- Simplify buildFulltextClauseX to always use PostgreSQL to_tsvector/to_tsquery
- Simplify searchGroupChannelsQuery to use ARRAY_TO_STRING/ARRAY_AGG
* Remove driver checks in file_info_store.go
Simplify file_info_store.go to use PostgreSQL-only code paths:
- Always use PostgreSQL to_tsvector/to_tsquery for file search
- Use file_stats materialized view for CountAll()
- Use file_stats materialized view for GetStorageUsage() when not including deleted
- Always execute RefreshFileStats() for materialized view refresh
* Remove driver checks in attributes_store.go
Simplify attributes_store.go to use PostgreSQL-only code paths:
- Always execute RefreshAttributes() for materialized view refresh
- Remove isPostgreSQL parameter from generateSearchQueryForExpression
- Always use PostgreSQL LOWER() LIKE LOWER() syntax for case-insensitive search
* Remove driver checks in retention_policy_store.go
Simplify retention_policy_store.go to use PostgreSQL-only code paths:
- Remove isPostgres parameter from scanRetentionIdsForDeletion
- Always use pq.Array for scanning retention IDs
- Always use pq.Array for inserting retention IDs
- Remove unused json import
* Remove driver checks in property stores
Simplify property_field_store.go and property_value_store.go to use
PostgreSQL-only code paths:
- Always use PostgreSQL type casts (::text, ::jsonb, ::bigint, etc.)
- Remove isPostgres variable and conditionals
* Remove driver checks in channel_member_history_store.go
Simplify PermanentDeleteBatch to use PostgreSQL-only code path:
- Always use ctid-based subquery for DELETE with LIMIT
* Remove remaining driver checks in user_store.go
Simplify user_store.go to use PostgreSQL-only code paths:
- Use LEFT JOIN for bot exclusion in AnalyticsActiveCountForPeriod
- Use LEFT JOIN for bot exclusion in IsEmpty
* Simplify fulltext search by consolidating buildFulltextClause functions
Remove convertMySQLFullTextColumnsToPostgres and consolidate
buildFulltextClause and buildFulltextClauseX into a single function
that takes variadic column arguments and returns sq.Sqlizer.
* Simplify SQL stores leveraging PostgreSQL-only support
- Simplify UpdateMembersRole in channel_store.go and team_store.go
to use UPDATE...RETURNING instead of SELECT + UPDATE
- Simplify GetPostReminders in post_store.go to use DELETE...RETURNING
- Simplify DeleteOrphanedRows queries by removing MySQL workarounds
for subquery locking issues
- Simplify UpdateUserLastSyncAt to use UPDATE...FROM...RETURNING
instead of fetching user first then updating
- Remove MySQL index hint workarounds in ORDER BY clauses
- Update outdated comments referencing MySQL
- Consolidate buildFulltextClause and remove convertMySQLFullTextColumnsToPostgres
* Remove MySQL-specific test artifacts
- Delete unused MySQLStopWords variable and stop_word.go file
- Remove redundant testSearchEmailAddressesWithQuotes test
(already covered by testSearchEmailAddresses)
- Update comment that referenced MySQL query planning
* Remove MySQL references from server code outside sqlstore
- Update config example and DSN parsing docs to reflect PostgreSQL-only support
- Remove mysql:// scheme check from IsDatabaseDSN
- Simplify SanitizeDataSource to only handle PostgreSQL
- Remove outdated MySQL comments from model and plugin code
* Remove MySQL references from test files
- Update test DSNs to use PostgreSQL format
- Remove dead mysql-replica flag and replicaFlag variable
- Simplify tests that had MySQL/PostgreSQL branches
* Update docs and test config to use PostgreSQL
- Update mmctl config set example to use postgres driver
- Update test-config.json to use PostgreSQL DSN format
* Remove MySQL migration scripts, test data, and docker image
Delete MySQL-related files that are no longer needed:
- ESR upgrade scripts (esr.*.mysql.*.sql)
- MySQL schema dumps (mattermost-mysql-*.sql)
- MySQL replication test scripts (replica-*.sh, mysql-migration-test.sh)
- MySQL test warmup data (mysql_migration_warmup.sql)
- MySQL docker image reference from mirror-docker-images.json
* Remove MySQL references from webapp
- Simplify minimumHashtagLength description to remove MySQL-specific configuration note
- Remove unused HIDE_MYSQL_STATS_NOTIFICATION preference constant
- Update en.json i18n source file
* clean up e2e-tests
* rm server/tests/template.load
* Use teamMemberSliceColumns() in UpdateMembersRole RETURNING clause
Refactor to use the existing helper function instead of hardcoding
the column names, ensuring consistency if the columns are updated.
* u.id -> u.Id
* address code review feedback
---------
Co-authored-by: Mattermost Build <build@mattermost.com>
* Utilize free runners for E2E tests, report back to PR on run completion
* Increase test stability on smaller instances
* Merge worker reports
* merge start+prepare steps
* upgrade keycloak
* increase test timeouts
* Add video recording to report artifacts
Co-authored-by: Saturnino Abril <5334504+saturninoabril@users.noreply.github.com>
---------
Co-authored-by: Saturnino Abril <5334504+saturninoabril@users.noreply.github.com>
