3 * PostgreSQL-specific updater.
10 * Class for handling updates to Postgres databases.
16 class PostgresUpdater
extends DatabaseUpdater
{
19 * @var DatabasePostgres
24 * @todo FIXME: Postgres should use sequential updates like Mysql, Sqlite
25 * and everybody else. It never got refactored like it should've.
28 protected function getCoreUpdateList() {
31 array( 'addSequence', 'logging_log_id_seq' ),
32 array( 'addSequence', 'page_restrictions_pr_id_seq' ),
35 array( 'renameSequence', 'ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq' ),
36 array( 'renameSequence', 'rev_rev_id_val', 'revision_rev_id_seq' ),
37 array( 'renameSequence', 'text_old_id_val', 'text_old_id_seq' ),
38 array( 'renameSequence', 'category_id_seq', 'category_cat_id_seq' ),
39 array( 'renameSequence', 'rc_rc_id_seq', 'recentchanges_rc_id_seq' ),
40 array( 'renameSequence', 'log_log_id_seq', 'logging_log_id_seq' ),
41 array( 'renameSequence', 'pr_id_val', 'page_restrictions_pr_id_seq' ),
42 array( 'renameSequence', 'us_id_seq', 'uploadstash_us_id_seq' ),
45 array( 'addTable', 'category', 'patch-category.sql' ),
46 array( 'addTable', 'page', 'patch-page.sql' ),
47 array( 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ),
48 array( 'addTable', 'page_props', 'patch-page_props.sql' ),
49 array( 'addTable', 'page_restrictions', 'patch-page_restrictions.sql' ),
50 array( 'addTable', 'profiling', 'patch-profiling.sql' ),
51 array( 'addTable', 'protected_titles', 'patch-protected_titles.sql' ),
52 array( 'addTable', 'redirect', 'patch-redirect.sql' ),
53 array( 'addTable', 'updatelog', 'patch-updatelog.sql' ),
54 array( 'addTable', 'change_tag', 'patch-change_tag.sql' ),
55 array( 'addTable', 'tag_summary', 'patch-tag_summary.sql' ),
56 array( 'addTable', 'valid_tag', 'patch-valid_tag.sql' ),
57 array( 'addTable', 'user_properties', 'patch-user_properties.sql' ),
58 array( 'addTable', 'log_search', 'patch-log_search.sql' ),
59 array( 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ),
60 array( 'addTable', 'iwlinks', 'patch-iwlinks.sql' ),
61 array( 'addTable', 'msg_resource', 'patch-msg_resource.sql' ),
62 array( 'addTable', 'msg_resource_links','patch-msg_resource_links.sql' ),
63 array( 'addTable', 'module_deps', 'patch-module_deps.sql' ),
64 array( 'addTable', 'uploadstash', 'patch-uploadstash.sql' ),
65 array( 'addTable', 'user_former_groups','patch-user_former_groups.sql' ),
67 # Needed before new field
68 array( 'convertArchive2' ),
71 array( 'addPgField', 'archive', 'ar_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
72 array( 'addPgField', 'archive', 'ar_len', 'INTEGER' ),
73 array( 'addPgField', 'archive', 'ar_page_id', 'INTEGER' ),
74 array( 'addPgField', 'archive', 'ar_parent_id', 'INTEGER' ),
75 array( 'addPgField', 'categorylinks', 'cl_sortkey_prefix', "TEXT NOT NULL DEFAULT ''"),
76 array( 'addPgField', 'categorylinks', 'cl_collation', "TEXT NOT NULL DEFAULT 0"),
77 array( 'addPgField', 'categorylinks', 'cl_type', "TEXT NOT NULL DEFAULT 'page'"),
78 array( 'addPgField', 'image', 'img_sha1', "TEXT NOT NULL DEFAULT ''" ),
79 array( 'addPgField', 'ipblocks', 'ipb_allow_usertalk', 'SMALLINT NOT NULL DEFAULT 0' ),
80 array( 'addPgField', 'ipblocks', 'ipb_anon_only', 'SMALLINT NOT NULL DEFAULT 0' ),
81 array( 'addPgField', 'ipblocks', 'ipb_by_text', "TEXT NOT NULL DEFAULT ''" ),
82 array( 'addPgField', 'ipblocks', 'ipb_block_email', 'SMALLINT NOT NULL DEFAULT 0' ),
83 array( 'addPgField', 'ipblocks', 'ipb_create_account', 'SMALLINT NOT NULL DEFAULT 1' ),
84 array( 'addPgField', 'ipblocks', 'ipb_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
85 array( 'addPgField', 'ipblocks', 'ipb_enable_autoblock', 'SMALLINT NOT NULL DEFAULT 1' ),
86 array( 'addPgField', 'filearchive', 'fa_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
87 array( 'addPgField', 'logging', 'log_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
88 array( 'addPgField', 'logging', 'log_id', "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
89 array( 'addPgField', 'logging', 'log_params', 'TEXT' ),
90 array( 'addPgField', 'mwuser', 'user_editcount', 'INTEGER' ),
91 array( 'addPgField', 'mwuser', 'user_newpass_time', 'TIMESTAMPTZ' ),
92 array( 'addPgField', 'oldimage', 'oi_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
93 array( 'addPgField', 'oldimage', 'oi_major_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
94 array( 'addPgField', 'oldimage', 'oi_media_type', 'TEXT' ),
95 array( 'addPgField', 'oldimage', 'oi_metadata', "BYTEA NOT NULL DEFAULT ''" ),
96 array( 'addPgField', 'oldimage', 'oi_minor_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
97 array( 'addPgField', 'oldimage', 'oi_sha1', "TEXT NOT NULL DEFAULT ''" ),
98 array( 'addPgField', 'page_restrictions', 'pr_id', "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_seq')" ),
99 array( 'addPgField', 'profiling', 'pf_memory', 'NUMERIC(18,10) NOT NULL DEFAULT 0' ),
100 array( 'addPgField', 'recentchanges', 'rc_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
101 array( 'addPgField', 'recentchanges', 'rc_log_action', 'TEXT' ),
102 array( 'addPgField', 'recentchanges', 'rc_log_type', 'TEXT' ),
103 array( 'addPgField', 'recentchanges', 'rc_logid', 'INTEGER NOT NULL DEFAULT 0' ),
104 array( 'addPgField', 'recentchanges', 'rc_new_len', 'INTEGER' ),
105 array( 'addPgField', 'recentchanges', 'rc_old_len', 'INTEGER' ),
106 array( 'addPgField', 'recentchanges', 'rc_params', 'TEXT' ),
107 array( 'addPgField', 'redirect', 'rd_interwiki', 'TEXT NULL' ),
108 array( 'addPgField', 'redirect', 'rd_fragment', 'TEXT NULL' ),
109 array( 'addPgField', 'revision', 'rev_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
110 array( 'addPgField', 'revision', 'rev_len', 'INTEGER' ),
111 array( 'addPgField', 'revision', 'rev_parent_id', 'INTEGER DEFAULT NULL' ),
112 array( 'addPgField', 'site_stats', 'ss_active_users', "INTEGER DEFAULT '-1'" ),
113 array( 'addPgField', 'user_newtalk', 'user_last_timestamp', 'TIMESTAMPTZ' ),
114 array( 'addPgField', 'logging', 'log_user_text', "TEXT NOT NULL DEFAULT ''" ),
115 array( 'addPgField', 'logging', 'log_page', 'INTEGER' ),
116 array( 'addPgField', 'interwiki', 'iw_api', "TEXT NOT NULL DEFAULT ''"),
117 array( 'addPgField', 'interwiki', 'iw_wikiid', "TEXT NOT NULL DEFAULT ''"),
118 array( 'addPgField', 'revision', 'rev_sha1', "TEXT NOT NULL DEFAULT ''" ),
119 array( 'addPgField', 'archive', 'ar_sha1', "TEXT NOT NULL DEFAULT ''" ),
120 array( 'addPgField', 'uploadstash', 'us_chunk_inx', "INTEGER NULL" ),
121 array( 'addPgField', 'job', 'job_timestamp', "TIMESTAMPTZ" ),
124 array( 'changeField', 'archive', 'ar_deleted', 'smallint', '' ),
125 array( 'changeField', 'archive', 'ar_minor_edit', 'smallint', 'ar_minor_edit::smallint DEFAULT 0' ),
126 array( 'changeField', 'filearchive', 'fa_deleted', 'smallint', '' ),
127 array( 'changeField', 'filearchive', 'fa_height', 'integer', '' ),
128 array( 'changeField', 'filearchive', 'fa_metadata', 'bytea', "decode(fa_metadata,'escape')" ),
129 array( 'changeField', 'filearchive', 'fa_size', 'integer', '' ),
130 array( 'changeField', 'filearchive', 'fa_width', 'integer', '' ),
131 array( 'changeField', 'filearchive', 'fa_storage_group', 'text', '' ),
132 array( 'changeField', 'filearchive', 'fa_storage_key', 'text', '' ),
133 array( 'changeField', 'image', 'img_metadata', 'bytea', "decode(img_metadata,'escape')" ),
134 array( 'changeField', 'image', 'img_size', 'integer', '' ),
135 array( 'changeField', 'image', 'img_width', 'integer', '' ),
136 array( 'changeField', 'image', 'img_height', 'integer', '' ),
137 array( 'changeField', 'interwiki', 'iw_local', 'smallint', 'iw_local::smallint DEFAULT 0' ),
138 array( 'changeField', 'interwiki', 'iw_trans', 'smallint', 'iw_trans::smallint DEFAULT 0' ),
139 array( 'changeField', 'ipblocks', 'ipb_auto', 'smallint', 'ipb_auto::smallint DEFAULT 0' ),
140 array( 'changeField', 'ipblocks', 'ipb_anon_only', 'smallint', "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
141 array( 'changeField', 'ipblocks', 'ipb_create_account', 'smallint', "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
142 array( 'changeField', 'ipblocks', 'ipb_enable_autoblock', 'smallint', "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
143 array( 'changeField', 'ipblocks', 'ipb_block_email', 'smallint', "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
144 array( 'changeField', 'ipblocks', 'ipb_address', 'text', 'ipb_address::text' ),
145 array( 'changeField', 'ipblocks', 'ipb_deleted', 'smallint', 'ipb_deleted::smallint DEFAULT 0' ),
146 array( 'changeField', 'mwuser', 'user_token', 'text', '' ),
147 array( 'changeField', 'mwuser', 'user_email_token', 'text', '' ),
148 array( 'changeField', 'objectcache', 'keyname', 'text', '' ),
149 array( 'changeField', 'oldimage', 'oi_height', 'integer', '' ),
150 array( 'changeField', 'oldimage', 'oi_metadata', 'bytea', "decode(img_metadata,'escape')" ),
151 array( 'changeField', 'oldimage', 'oi_size', 'integer', '' ),
152 array( 'changeField', 'oldimage', 'oi_width', 'integer', '' ),
153 array( 'changeField', 'page', 'page_is_redirect', 'smallint', 'page_is_redirect::smallint DEFAULT 0' ),
154 array( 'changeField', 'page', 'page_is_new', 'smallint', 'page_is_new::smallint DEFAULT 0' ),
155 array( 'changeField', 'querycache', 'qc_value', 'integer', '' ),
156 array( 'changeField', 'querycachetwo', 'qcc_value', 'integer', '' ),
157 array( 'changeField', 'recentchanges', 'rc_bot', 'smallint', 'rc_bot::smallint DEFAULT 0' ),
158 array( 'changeField', 'recentchanges', 'rc_deleted', 'smallint', '' ),
159 array( 'changeField', 'recentchanges', 'rc_minor', 'smallint', 'rc_minor::smallint DEFAULT 0' ),
160 array( 'changeField', 'recentchanges', 'rc_new', 'smallint', 'rc_new::smallint DEFAULT 0' ),
161 array( 'changeField', 'recentchanges', 'rc_type', 'smallint', 'rc_type::smallint DEFAULT 0' ),
162 array( 'changeField', 'recentchanges', 'rc_patrolled', 'smallint', 'rc_patrolled::smallint DEFAULT 0' ),
163 array( 'changeField', 'revision', 'rev_deleted', 'smallint', 'rev_deleted::smallint DEFAULT 0' ),
164 array( 'changeField', 'revision', 'rev_minor_edit', 'smallint', 'rev_minor_edit::smallint DEFAULT 0' ),
165 array( 'changeField', 'templatelinks', 'tl_namespace', 'smallint', 'tl_namespace::smallint' ),
166 array( 'changeField', 'user_newtalk', 'user_ip', 'text', 'host(user_ip)' ),
169 array( 'changeNullableField', 'oldimage', 'oi_bits', 'NULL' ),
170 array( 'changeNullableField', 'oldimage', 'oi_timestamp', 'NULL' ),
171 array( 'changeNullableField', 'oldimage', 'oi_major_mime', 'NULL' ),
172 array( 'changeNullableField', 'oldimage', 'oi_minor_mime', 'NULL' ),
174 array( 'checkOiDeleted' ),
177 array( 'addPgIndex', 'archive', 'archive_user_text', '(ar_user_text)' ),
178 array( 'addPgIndex', 'image', 'img_sha1', '(img_sha1)' ),
179 array( 'addPgIndex', 'oldimage', 'oi_sha1', '(oi_sha1)' ),
180 array( 'addPgIndex', 'page', 'page_mediawiki_title', '(page_title) WHERE page_namespace = 8' ),
181 array( 'addPgIndex', 'pagelinks', 'pagelinks_title', '(pl_title)' ),
182 array( 'addPgIndex', 'revision', 'rev_text_id_idx', '(rev_text_id)' ),
183 array( 'addPgIndex', 'recentchanges', 'rc_timestamp_bot', '(rc_timestamp) WHERE rc_bot = 0' ),
184 array( 'addPgIndex', 'templatelinks', 'templatelinks_from', '(tl_from)' ),
185 array( 'addPgIndex', 'watchlist', 'wl_user', '(wl_user)' ),
186 array( 'addPgIndex', 'logging', 'logging_user_type_time', '(log_user, log_type, log_timestamp)' ),
187 array( 'addPgIndex', 'logging', 'logging_page_id_time', '(log_page,log_timestamp)' ),
188 array( 'addPgIndex', 'iwlinks', 'iwl_prefix_title_from', '(iwl_prefix, iwl_title, iwl_from)' ),
189 array( 'addPgIndex', 'job', 'job_timestamp_idx', '(job_timestamp)' ),
191 array( 'checkOiNameConstraint' ),
192 array( 'checkPageDeletedTrigger' ),
193 array( 'checkRcCurIdNullable' ),
194 array( 'checkPagelinkUniqueIndex' ),
195 array( 'checkRevUserFkey' ),
196 array( 'checkIpbAdress' ),
197 array( 'checkIwlPrefix' ),
199 # All FK columns should be deferred
200 array( 'changeFkeyDeferrable', 'archive', 'ar_user', 'mwuser(user_id) ON DELETE SET NULL' ),
201 array( 'changeFkeyDeferrable', 'categorylinks', 'cl_from', 'page(page_id) ON DELETE CASCADE' ),
202 array( 'changeFkeyDeferrable', 'externallinks', 'el_from', 'page(page_id) ON DELETE CASCADE' ),
203 array( 'changeFkeyDeferrable', 'filearchive', 'fa_deleted_user', 'mwuser(user_id) ON DELETE SET NULL' ),
204 array( 'changeFkeyDeferrable', 'filearchive', 'fa_user', 'mwuser(user_id) ON DELETE SET NULL' ),
205 array( 'changeFkeyDeferrable', 'image', 'img_user', 'mwuser(user_id) ON DELETE SET NULL' ),
206 array( 'changeFkeyDeferrable', 'imagelinks', 'il_from', 'page(page_id) ON DELETE CASCADE' ),
207 array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_by', 'mwuser(user_id) ON DELETE CASCADE' ),
208 array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_user', 'mwuser(user_id) ON DELETE SET NULL' ),
209 array( 'changeFkeyDeferrable', 'langlinks', 'll_from', 'page(page_id) ON DELETE CASCADE' ),
210 array( 'changeFkeyDeferrable', 'logging', 'log_user', 'mwuser(user_id) ON DELETE SET NULL' ),
211 array( 'changeFkeyDeferrable', 'oldimage', 'oi_name', 'image(img_name) ON DELETE CASCADE ON UPDATE CASCADE' ),
212 array( 'changeFkeyDeferrable', 'oldimage', 'oi_user', 'mwuser(user_id) ON DELETE SET NULL' ),
213 array( 'changeFkeyDeferrable', 'pagelinks', 'pl_from', 'page(page_id) ON DELETE CASCADE' ),
214 array( 'changeFkeyDeferrable', 'page_props', 'pp_page', 'page (page_id) ON DELETE CASCADE' ),
215 array( 'changeFkeyDeferrable', 'page_restrictions', 'pr_page', 'page(page_id) ON DELETE CASCADE' ),
216 array( 'changeFkeyDeferrable', 'protected_titles', 'pt_user', 'mwuser(user_id) ON DELETE SET NULL' ),
217 array( 'changeFkeyDeferrable', 'recentchanges', 'rc_cur_id', 'page(page_id) ON DELETE SET NULL' ),
218 array( 'changeFkeyDeferrable', 'recentchanges', 'rc_user', 'mwuser(user_id) ON DELETE SET NULL' ),
219 array( 'changeFkeyDeferrable', 'redirect', 'rd_from', 'page(page_id) ON DELETE CASCADE' ),
220 array( 'changeFkeyDeferrable', 'revision', 'rev_page', 'page (page_id) ON DELETE CASCADE' ),
221 array( 'changeFkeyDeferrable', 'revision', 'rev_user', 'mwuser(user_id) ON DELETE RESTRICT' ),
222 array( 'changeFkeyDeferrable', 'templatelinks', 'tl_from', 'page(page_id) ON DELETE CASCADE' ),
223 array( 'changeFkeyDeferrable', 'user_groups', 'ug_user', 'mwuser(user_id) ON DELETE CASCADE' ),
224 array( 'changeFkeyDeferrable', 'user_newtalk', 'user_id', 'mwuser(user_id) ON DELETE CASCADE' ),
225 array( 'changeFkeyDeferrable', 'user_properties', 'up_user', 'mwuser(user_id) ON DELETE CASCADE' ),
226 array( 'changeFkeyDeferrable', 'watchlist', 'wl_user', 'mwuser(user_id) ON DELETE CASCADE' ),
229 array( 'tsearchFixes' ),
233 protected function getOldGlobalUpdates() {
234 global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
238 # Add missing extension tables
239 foreach ( $wgExtNewTables as $tableRecord ) {
241 'addTable', $tableRecord[0], $tableRecord[1], true
245 # Add missing extension fields
246 foreach ( $wgExtPGNewFields as $fieldRecord ) {
248 'addPgField', $fieldRecord[0], $fieldRecord[1],
253 # Change altered columns
254 foreach ( $wgExtPGAlteredFields as $fieldRecord ) {
256 'changeField', $fieldRecord[0], $fieldRecord[1],
261 # Add missing extension indexes
262 foreach ( $wgExtNewIndexes as $fieldRecord ) {
264 'addPgExtIndex', $fieldRecord[0], $fieldRecord[1],
272 protected function describeTable( $table ) {
274 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
275 WHERE pg_class.relnamespace = pg_namespace.oid
276 AND attrelid=pg_class.oid AND attnum > 0
277 AND relname=%s AND nspname=%s
279 $res = $this->db
->query( sprintf( $q,
280 $this->db
->addQuotes( $table ),
281 $this->db
->addQuotes( $this->db
->getCoreSchema() ) ) );
287 foreach ( $res as $r ) {
296 function describeIndex( $idx ) {
297 // first fetch the key (which is a list of columns ords) and
298 // the table the index applies to (an oid)
300 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
302 AND pg_class.relnamespace = pg_namespace.oid
304 AND indexrelid=pg_class.oid
306 $res = $this->db
->query(
309 $this->db
->addQuotes( $this->db
->getCoreSchea() ),
310 $this->db
->addQuotes( $idx )
316 if ( !( $r = $this->db
->fetchRow( $res ) ) ) {
321 $relid = intval( $r[1] );
322 $indkeys = explode( ' ', $indkey );
325 foreach ( $indkeys as $rid ) {
327 SELECT attname FROM pg_class, pg_attribute
328 WHERE attrelid=$relid
330 AND attrelid=pg_class.oid
332 $r2 = $this->db
->query( sprintf( $query, $rid ) );
336 if ( !( $row2 = $this->db
->fetchRow( $r2 ) ) ) {
339 $colnames[] = $row2[0];
345 function fkeyDeltype( $fkey ) {
347 SELECT confdeltype FROM pg_constraint, pg_namespace
348 WHERE connamespace=pg_namespace.oid
352 $r = $this->db
->query(
355 $this->db
->addQuotes( $this->db
->getCoreSchema() ),
356 $this->db
->addQuotes( $fkey )
359 if ( !( $row = $this->db
->fetchRow( $r ) ) ) {
365 function ruleDef( $table, $rule ) {
367 SELECT definition FROM pg_rules
368 WHERE schemaname = %s
372 $r = $this->db
->query(
375 $this->db
->addQuotes( $this->db
->getCoreSchema() ),
376 $this->db
->addQuotes( $table ),
377 $this->db
->addQuotes( $rule )
380 $row = $this->db
->fetchRow( $r );
388 protected function addSequence( $ns ) {
389 if ( !$this->db
->sequenceExists( $ns ) ) {
390 $this->output( "Creating sequence $ns\n" );
391 $this->db
->query( "CREATE SEQUENCE $ns" );
395 protected function renameSequence( $old, $new ) {
396 if ( $this->db
->sequenceExists( $new ) ) {
397 $this->output( "WARNING sequence $new already exists\n" );
400 if ( $this->db
->sequenceExists( $old ) ) {
401 $this->output( "Renaming sequence $old to $new\n" );
402 $this->db
->query( "ALTER SEQUENCE $old RENAME TO $new" );
406 protected function renameTable( $old, $new ) {
407 if ( $this->db
->tableExists( $old ) ) {
408 $this->output( "Renaming table $old to $new\n" );
409 $old = $this->db
->addQuotes( $old );
410 $this->db
->query( "ALTER TABLE $old RENAME TO $new" );
414 protected function addPgField( $table, $field, $type ) {
415 $fi = $this->db
->fieldInfo( $table, $field );
416 if ( !is_null( $fi ) ) {
417 $this->output( "... column '$table.$field' already exists\n" );
420 $this->output( "Adding column '$table.$field'\n" );
421 $this->db
->query( "ALTER TABLE $table ADD $field $type" );
425 protected function changeField( $table, $field, $newtype, $default ) {
426 $fi = $this->db
->fieldInfo( $table, $field );
427 if ( is_null( $fi ) ) {
428 $this->output( "... error: expected column $table.$field to exist\n" );
432 if ( $fi->type() === $newtype )
433 $this->output( "... column '$table.$field' is already of type '$newtype'\n" );
435 $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
436 $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
437 if ( strlen( $default ) ) {
439 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
440 $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
441 $this->db
->query( $sqldef );
442 $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
444 $sql .= " USING $default";
446 $this->db
->begin( __METHOD__
);
447 $this->db
->query( $sql );
448 $this->db
->commit( __METHOD__
);
452 protected function changeNullableField( $table, $field, $null ) {
453 $fi = $this->db
->fieldInfo( $table, $field );
454 if ( is_null( $fi ) ) {
455 $this->output( "... error: expected column $table.$field to exist\n" );
458 if ( $fi->isNullable() ) {
459 # # It's NULL - does it need to be NOT NULL?
460 if ( 'NOT NULL' === $null ) {
461 $this->output( "Changing '$table.$field' to not allow NULLs\n" );
462 $this->db
->query( "ALTER TABLE $table ALTER $field SET NOT NULL" );
464 $this->output( "... column '$table.$field' is already set as NULL\n" );
467 # # It's NOT NULL - does it need to be NULL?
468 if ( 'NULL' === $null ) {
469 $this->output( "Changing '$table.$field' to allow NULLs\n" );
470 $this->db
->query( "ALTER TABLE $table ALTER $field DROP NOT NULL" );
473 $this->output( "... column '$table.$field' is already set as NOT NULL\n" );
478 public function addPgIndex( $table, $index, $type ) {
479 if ( $this->db
->indexExists( $table, $index ) ) {
480 $this->output( "... index '$index' on table '$table' already exists\n" );
482 $this->output( "Creating index '$index' on table '$table' $type\n" );
483 $this->db
->query( "CREATE INDEX $index ON $table $type" );
487 public function addPgExtIndex( $table, $index, $type ) {
488 if ( $this->db
->indexExists( $table, $index ) ) {
489 $this->output( "... index '$index' on table '$table' already exists\n" );
491 $this->output( "Creating index '$index' on table '$table'\n" );
492 if ( preg_match( '/^\(/', $type ) ) {
493 $this->db
->query( "CREATE INDEX $index ON $table $type" );
495 $this->applyPatch( $type, true );
500 protected function changeFkeyDeferrable( $table, $field, $clause ) {
501 $fi = $this->db
->fieldInfo( $table, $field );
502 if ( is_null( $fi ) ) {
503 $this->output( "WARNING! Column '$table.$field' does not exist but it should! Please report this.\n" );
506 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
509 $this->output( "Altering column '$table.$field' to be DEFERRABLE INITIALLY DEFERRED\n" );
510 $conname = $fi->conname();
511 $command = "ALTER TABLE $table DROP CONSTRAINT $conname";
512 $this->db
->query( $command );
513 $command = "ALTER TABLE $table ADD CONSTRAINT $conname FOREIGN KEY ($field) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
514 $this->db
->query( $command );
517 protected function convertArchive2() {
518 if ( $this->db
->tableExists( "archive2" ) ) {
519 $this->output( "Converting 'archive2' back to normal archive table\n" );
520 if ( $this->db
->ruleExists( 'archive', 'archive_insert' ) ) {
521 $this->output( "Dropping rule 'archive_insert'\n" );
522 $this->db
->query( 'DROP RULE archive_insert ON archive' );
524 if ( $this->db
->ruleExists( 'archive', 'archive_delete' ) ) {
525 $this->output( "Dropping rule 'archive_delete'\n" );
526 $this->db
->query( 'DROP RULE archive_delete ON archive' );
528 $this->applyPatch( 'patch-remove-archive2.sql' );
530 $this->output( "... obsolete table 'archive2' does not exist\n" );
534 protected function checkOiDeleted() {
535 if ( $this->db
->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
536 $this->output( "Changing 'oldimage.oi_deleted' to type 'smallint'\n" );
537 $this->db
->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
538 $this->db
->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
539 $this->db
->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
541 $this->output( "... column 'oldimage.oi_deleted' is already of type 'smallint'\n" );
545 protected function checkOiNameConstraint() {
546 if ( $this->db
->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
547 $this->output( "... table 'oldimage' has correct cascading delete/update foreign key to image\n" );
549 if ( $this->db
->hasConstraint( "oldimage_oi_name_fkey" ) ) {
550 $this->db
->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
552 if ( $this->db
->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
553 $this->db
->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
555 $this->output( "Making foreign key on table 'oldimage' (to image) a cascade delete/update\n" );
556 $this->db
->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
557 "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" );
561 protected function checkPageDeletedTrigger() {
562 if ( !$this->db
->triggerExists( 'page', 'page_deleted' ) ) {
563 $this->output( "Adding function and trigger 'page_deleted' to table 'page'\n" );
564 $this->applyPatch( 'patch-page_deleted.sql' );
566 $this->output( "... table 'page' has 'page_deleted' trigger\n" );
570 protected function checkRcCurIdNullable(){
571 $fi = $this->db
->fieldInfo( 'recentchanges', 'rc_cur_id' );
572 if ( !$fi->isNullable() ) {
573 $this->output( "Removing NOT NULL constraint from 'recentchanges.rc_cur_id'\n" );
574 $this->applyPatch( 'patch-rc_cur_id-not-null.sql' );
576 $this->output( "... column 'recentchanges.rc_cur_id' has a NOT NULL constraint\n" );
580 protected function checkPagelinkUniqueIndex() {
581 $pu = $this->describeIndex( 'pagelink_unique' );
582 if ( !is_null( $pu ) && ( $pu[0] != 'pl_from' ||
$pu[1] != 'pl_namespace' ||
$pu[2] != 'pl_title' ) ) {
583 $this->output( "Dropping obsolete version of index 'pagelink_unique index'\n" );
584 $this->db
->query( 'DROP INDEX pagelink_unique' );
587 $this->output( "... obsolete version of index 'pagelink_unique index' does not exist\n" );
590 if ( is_null( $pu ) ) {
591 $this->output( "Creating index 'pagelink_unique index'\n" );
592 $this->db
->query( 'CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)' );
594 $this->output( "... index 'pagelink_unique_index' already exists\n" );
598 protected function checkRevUserFkey() {
599 if ( $this->fkeyDeltype( 'revision_rev_user_fkey' ) == 'r' ) {
600 $this->output( "... constraint 'revision_rev_user_fkey' is ON DELETE RESTRICT\n" );
602 $this->output( "Changing constraint 'revision_rev_user_fkey' to ON DELETE RESTRICT\n" );
603 $this->applyPatch( 'patch-revision_rev_user_fkey.sql' );
607 protected function checkIpbAdress() {
608 if ( $this->db
->indexExists( 'ipblocks', 'ipb_address' ) ) {
609 $this->output( "Removing deprecated index 'ipb_address'...\n" );
610 $this->db
->query( 'DROP INDEX ipb_address' );
612 if ( $this->db
->indexExists( 'ipblocks', 'ipb_address_unique' ) ) {
613 $this->output( "... have ipb_address_unique\n" );
615 $this->output( "Adding ipb_address_unique index\n" );
616 $this->applyPatch( 'patch-ipb_address_unique.sql' );
620 protected function checkIwlPrefix() {
621 if ( $this->db
->indexExists( 'iwlinks', 'iwl_prefix' ) ) {
622 $this->output( "Replacing index 'iwl_prefix' with 'iwl_prefix_from_title'...\n" );
623 $this->applyPatch( 'patch-rename-iwl_prefix.sql' );
627 protected function tsearchFixes() {
628 # Tweak the page_title tsearch2 trigger to filter out slashes
629 # This is create or replace, so harmless to call if not needed
630 $this->output( "Refreshing ts2_page_title()...\n" );
631 $this->applyPatch( 'patch-ts2pagetitle.sql' );
633 # If the server is 8.3 or higher, rewrite the tsearch2 triggers
634 # in case they have the old 'default' versions
635 # Gather version numbers in case we need them
636 if ( $this->db
->getServerVersion() >= 8.3 ) {
637 $this->output( "Rewriting tsearch2 triggers...\n" );
638 $this->applyPatch( 'patch-tsearch2funcs.sql' );