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 # r15791 Change reserved word table names "user" and "text"
32 array( 'renameTable', 'user', 'mwuser'),
33 array( 'renameTable', 'text', 'pagecontent'),
36 array( 'addSequence', 'logging_log_id_seq' ),
37 array( 'addSequence', 'page_restrictions_pr_id_seq' ),
40 array( 'renameSequence', 'ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq' ),
41 array( 'renameSequence', 'rev_rev_id_val', 'revision_rev_id_seq' ),
42 array( 'renameSequence', 'text_old_id_val', 'text_old_id_seq' ),
43 array( 'renameSequence', 'category_id_seq', 'category_cat_id_seq' ),
44 array( 'renameSequence', 'rc_rc_id_seq', 'recentchanges_rc_id_seq' ),
45 array( 'renameSequence', 'log_log_id_seq', 'logging_log_id_seq' ),
46 array( 'renameSequence', 'pr_id_val', 'page_restrictions_pr_id_seq' ),
47 array( 'renameSequence', 'us_id_seq', 'uploadstash_us_id_seq' ),
50 array( 'addTable', 'category', 'patch-category.sql' ),
51 array( 'addTable', 'page', 'patch-page.sql' ),
52 array( 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ),
53 array( 'addTable', 'page_props', 'patch-page_props.sql' ),
54 array( 'addTable', 'page_restrictions', 'patch-page_restrictions.sql' ),
55 array( 'addTable', 'profiling', 'patch-profiling.sql' ),
56 array( 'addTable', 'protected_titles', 'patch-protected_titles.sql' ),
57 array( 'addTable', 'redirect', 'patch-redirect.sql' ),
58 array( 'addTable', 'updatelog', 'patch-updatelog.sql' ),
59 array( 'addTable', 'change_tag', 'patch-change_tag.sql' ),
60 array( 'addTable', 'tag_summary', 'patch-tag_summary.sql' ),
61 array( 'addTable', 'valid_tag', 'patch-valid_tag.sql' ),
62 array( 'addTable', 'user_properties', 'patch-user_properties.sql' ),
63 array( 'addTable', 'log_search', 'patch-log_search.sql' ),
64 array( 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ),
65 array( 'addTable', 'iwlinks', 'patch-iwlinks.sql' ),
66 array( 'addTable', 'msg_resource', 'patch-msg_resource.sql' ),
67 array( 'addTable', 'msg_resource_links','patch-msg_resource_links.sql' ),
68 array( 'addTable', 'module_deps', 'patch-module_deps.sql' ),
69 array( 'addTable', 'uploadstash', 'patch-uploadstash.sql' ),
70 array( 'addTable', 'user_former_groups','patch-user_former_groups.sql' ),
72 # Needed before new field
73 array( 'convertArchive2' ),
76 array( 'addPgField', 'archive', 'ar_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
77 array( 'addPgField', 'archive', 'ar_len', 'INTEGER' ),
78 array( 'addPgField', 'archive', 'ar_page_id', 'INTEGER' ),
79 array( 'addPgField', 'archive', 'ar_parent_id', 'INTEGER' ),
80 array( 'addPgField', 'categorylinks', 'cl_sortkey_prefix', "TEXT NOT NULL DEFAULT ''"),
81 array( 'addPgField', 'categorylinks', 'cl_collation', "TEXT NOT NULL DEFAULT 0"),
82 array( 'addPgField', 'categorylinks', 'cl_type', "TEXT NOT NULL DEFAULT 'page'"),
83 array( 'addPgField', 'image', 'img_sha1', "TEXT NOT NULL DEFAULT ''" ),
84 array( 'addPgField', 'ipblocks', 'ipb_allow_usertalk', 'SMALLINT NOT NULL DEFAULT 0' ),
85 array( 'addPgField', 'ipblocks', 'ipb_anon_only', 'SMALLINT NOT NULL DEFAULT 0' ),
86 array( 'addPgField', 'ipblocks', 'ipb_by_text', "TEXT NOT NULL DEFAULT ''" ),
87 array( 'addPgField', 'ipblocks', 'ipb_block_email', 'SMALLINT NOT NULL DEFAULT 0' ),
88 array( 'addPgField', 'ipblocks', 'ipb_create_account', 'SMALLINT NOT NULL DEFAULT 1' ),
89 array( 'addPgField', 'ipblocks', 'ipb_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
90 array( 'addPgField', 'ipblocks', 'ipb_enable_autoblock', 'SMALLINT NOT NULL DEFAULT 1' ),
91 array( 'addPgField', 'filearchive', 'fa_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
92 array( 'addPgField', 'logging', 'log_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
93 array( 'addPgField', 'logging', 'log_id', "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
94 array( 'addPgField', 'logging', 'log_params', 'TEXT' ),
95 array( 'addPgField', 'mwuser', 'user_editcount', 'INTEGER' ),
96 array( 'addPgField', 'mwuser', 'user_newpass_time', 'TIMESTAMPTZ' ),
97 array( 'addPgField', 'oldimage', 'oi_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
98 array( 'addPgField', 'oldimage', 'oi_major_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
99 array( 'addPgField', 'oldimage', 'oi_media_type', 'TEXT' ),
100 array( 'addPgField', 'oldimage', 'oi_metadata', "BYTEA NOT NULL DEFAULT ''" ),
101 array( 'addPgField', 'oldimage', 'oi_minor_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
102 array( 'addPgField', 'oldimage', 'oi_sha1', "TEXT NOT NULL DEFAULT ''" ),
103 array( 'addPgField', 'page_restrictions', 'pr_id', "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_seq')" ),
104 array( 'addPgField', 'profiling', 'pf_memory', 'NUMERIC(18,10) NOT NULL DEFAULT 0' ),
105 array( 'addPgField', 'recentchanges', 'rc_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
106 array( 'addPgField', 'recentchanges', 'rc_log_action', 'TEXT' ),
107 array( 'addPgField', 'recentchanges', 'rc_log_type', 'TEXT' ),
108 array( 'addPgField', 'recentchanges', 'rc_logid', 'INTEGER NOT NULL DEFAULT 0' ),
109 array( 'addPgField', 'recentchanges', 'rc_new_len', 'INTEGER' ),
110 array( 'addPgField', 'recentchanges', 'rc_old_len', 'INTEGER' ),
111 array( 'addPgField', 'recentchanges', 'rc_params', 'TEXT' ),
112 array( 'addPgField', 'redirect', 'rd_interwiki', 'TEXT NULL' ),
113 array( 'addPgField', 'redirect', 'rd_fragment', 'TEXT NULL' ),
114 array( 'addPgField', 'revision', 'rev_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
115 array( 'addPgField', 'revision', 'rev_len', 'INTEGER' ),
116 array( 'addPgField', 'revision', 'rev_parent_id', 'INTEGER DEFAULT NULL' ),
117 array( 'addPgField', 'site_stats', 'ss_active_users', "INTEGER DEFAULT '-1'" ),
118 array( 'addPgField', 'user_newtalk', 'user_last_timestamp', 'TIMESTAMPTZ' ),
119 array( 'addPgField', 'logging', 'log_user_text', "TEXT NOT NULL DEFAULT ''" ),
120 array( 'addPgField', 'logging', 'log_page', 'INTEGER' ),
121 array( 'addPgField', 'interwiki', 'iw_api', "TEXT NOT NULL DEFAULT ''"),
122 array( 'addPgField', 'interwiki', 'iw_wikiid', "TEXT NOT NULL DEFAULT ''"),
123 array( 'addPgField', 'revision', 'rev_sha1', "TEXT NOT NULL DEFAULT ''" ),
124 array( 'addPgField', 'archive', 'ar_sha1', "TEXT NOT NULL DEFAULT ''" ),
125 array( 'addPgField', 'uploadstash', 'us_chunk_inx', "INTEGER NULL" ),
126 array( 'addPgField', 'job', 'job_timestamp', "TIMESTAMPTZ" ),
129 array( 'changeField', 'archive', 'ar_deleted', 'smallint', '' ),
130 array( 'changeField', 'archive', 'ar_minor_edit', 'smallint', 'ar_minor_edit::smallint DEFAULT 0' ),
131 array( 'changeField', 'filearchive', 'fa_deleted', 'smallint', '' ),
132 array( 'changeField', 'filearchive', 'fa_height', 'integer', '' ),
133 array( 'changeField', 'filearchive', 'fa_metadata', 'bytea', "decode(fa_metadata,'escape')" ),
134 array( 'changeField', 'filearchive', 'fa_size', 'integer', '' ),
135 array( 'changeField', 'filearchive', 'fa_width', 'integer', '' ),
136 array( 'changeField', 'filearchive', 'fa_storage_group', 'text', '' ),
137 array( 'changeField', 'filearchive', 'fa_storage_key', 'text', '' ),
138 array( 'changeField', 'image', 'img_metadata', 'bytea', "decode(img_metadata,'escape')" ),
139 array( 'changeField', 'image', 'img_size', 'integer', '' ),
140 array( 'changeField', 'image', 'img_width', 'integer', '' ),
141 array( 'changeField', 'image', 'img_height', 'integer', '' ),
142 array( 'changeField', 'interwiki', 'iw_local', 'smallint', 'iw_local::smallint DEFAULT 0' ),
143 array( 'changeField', 'interwiki', 'iw_trans', 'smallint', 'iw_trans::smallint DEFAULT 0' ),
144 array( 'changeField', 'ipblocks', 'ipb_auto', 'smallint', 'ipb_auto::smallint DEFAULT 0' ),
145 array( 'changeField', 'ipblocks', 'ipb_anon_only', 'smallint', "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
146 array( 'changeField', 'ipblocks', 'ipb_create_account', 'smallint', "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
147 array( 'changeField', 'ipblocks', 'ipb_enable_autoblock', 'smallint', "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
148 array( 'changeField', 'ipblocks', 'ipb_block_email', 'smallint', "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
149 array( 'changeField', 'ipblocks', 'ipb_address', 'text', 'ipb_address::text' ),
150 array( 'changeField', 'ipblocks', 'ipb_deleted', 'smallint', 'ipb_deleted::smallint DEFAULT 0' ),
151 array( 'changeField', 'mwuser', 'user_token', 'text', '' ),
152 array( 'changeField', 'mwuser', 'user_email_token', 'text', '' ),
153 array( 'changeField', 'objectcache', 'keyname', 'text', '' ),
154 array( 'changeField', 'oldimage', 'oi_height', 'integer', '' ),
155 array( 'changeField', 'oldimage', 'oi_metadata', 'bytea', "decode(img_metadata,'escape')" ),
156 array( 'changeField', 'oldimage', 'oi_size', 'integer', '' ),
157 array( 'changeField', 'oldimage', 'oi_width', 'integer', '' ),
158 array( 'changeField', 'page', 'page_is_redirect', 'smallint', 'page_is_redirect::smallint DEFAULT 0' ),
159 array( 'changeField', 'page', 'page_is_new', 'smallint', 'page_is_new::smallint DEFAULT 0' ),
160 array( 'changeField', 'querycache', 'qc_value', 'integer', '' ),
161 array( 'changeField', 'querycachetwo', 'qcc_value', 'integer', '' ),
162 array( 'changeField', 'recentchanges', 'rc_bot', 'smallint', 'rc_bot::smallint DEFAULT 0' ),
163 array( 'changeField', 'recentchanges', 'rc_deleted', 'smallint', '' ),
164 array( 'changeField', 'recentchanges', 'rc_minor', 'smallint', 'rc_minor::smallint DEFAULT 0' ),
165 array( 'changeField', 'recentchanges', 'rc_new', 'smallint', 'rc_new::smallint DEFAULT 0' ),
166 array( 'changeField', 'recentchanges', 'rc_type', 'smallint', 'rc_type::smallint DEFAULT 0' ),
167 array( 'changeField', 'recentchanges', 'rc_patrolled', 'smallint', 'rc_patrolled::smallint DEFAULT 0' ),
168 array( 'changeField', 'revision', 'rev_deleted', 'smallint', 'rev_deleted::smallint DEFAULT 0' ),
169 array( 'changeField', 'revision', 'rev_minor_edit', 'smallint', 'rev_minor_edit::smallint DEFAULT 0' ),
170 array( 'changeField', 'templatelinks', 'tl_namespace', 'smallint', 'tl_namespace::smallint' ),
171 array( 'changeField', 'user_newtalk', 'user_ip', 'text', 'host(user_ip)' ),
174 array( 'changeNullableField', 'oldimage', 'oi_bits', 'NULL' ),
175 array( 'changeNullableField', 'oldimage', 'oi_timestamp', 'NULL' ),
176 array( 'changeNullableField', 'oldimage', 'oi_major_mime', 'NULL' ),
177 array( 'changeNullableField', 'oldimage', 'oi_minor_mime', 'NULL' ),
179 array( 'checkOiDeleted' ),
182 array( 'addPgIndex', 'archive', 'archive_user_text', '(ar_user_text)' ),
183 array( 'addPgIndex', 'image', 'img_sha1', '(img_sha1)' ),
184 array( 'addPgIndex', 'oldimage', 'oi_sha1', '(oi_sha1)' ),
185 array( 'addPgIndex', 'page', 'page_mediawiki_title', '(page_title) WHERE page_namespace = 8' ),
186 array( 'addPgIndex', 'pagelinks', 'pagelinks_title', '(pl_title)' ),
187 array( 'addPgIndex', 'revision', 'rev_text_id_idx', '(rev_text_id)' ),
188 array( 'addPgIndex', 'recentchanges', 'rc_timestamp_bot', '(rc_timestamp) WHERE rc_bot = 0' ),
189 array( 'addPgIndex', 'templatelinks', 'templatelinks_from', '(tl_from)' ),
190 array( 'addPgIndex', 'watchlist', 'wl_user', '(wl_user)' ),
191 array( 'addPgIndex', 'logging', 'logging_user_type_time', '(log_user, log_type, log_timestamp)' ),
192 array( 'addPgIndex', 'logging', 'logging_page_id_time', '(log_page,log_timestamp)' ),
193 array( 'addPgIndex', 'iwlinks', 'iwl_prefix_title_from', '(iwl_prefix, iwl_title, iwl_from)' ),
194 array( 'addPgIndex', 'job', 'job_timestamp_idx', '(job_timestamp)' ),
196 array( 'checkOiNameConstraint' ),
197 array( 'checkPageDeletedTrigger' ),
198 array( 'checkRcCurIdNullable' ),
199 array( 'checkPagelinkUniqueIndex' ),
200 array( 'checkRevUserFkey' ),
201 array( 'checkIpbAdress' ),
202 array( 'checkIwlPrefix' ),
204 # All FK columns should be deferred
205 array( 'changeFkeyDeferrable', 'archive', 'ar_user', 'mwuser(user_id) ON DELETE SET NULL' ),
206 array( 'changeFkeyDeferrable', 'categorylinks', 'cl_from', 'page(page_id) ON DELETE CASCADE' ),
207 array( 'changeFkeyDeferrable', 'externallinks', 'el_from', 'page(page_id) ON DELETE CASCADE' ),
208 array( 'changeFkeyDeferrable', 'filearchive', 'fa_deleted_user', 'mwuser(user_id) ON DELETE SET NULL' ),
209 array( 'changeFkeyDeferrable', 'filearchive', 'fa_user', 'mwuser(user_id) ON DELETE SET NULL' ),
210 array( 'changeFkeyDeferrable', 'image', 'img_user', 'mwuser(user_id) ON DELETE SET NULL' ),
211 array( 'changeFkeyDeferrable', 'imagelinks', 'il_from', 'page(page_id) ON DELETE CASCADE' ),
212 array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_by', 'mwuser(user_id) ON DELETE CASCADE' ),
213 array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_user', 'mwuser(user_id) ON DELETE SET NULL' ),
214 array( 'changeFkeyDeferrable', 'langlinks', 'll_from', 'page(page_id) ON DELETE CASCADE' ),
215 array( 'changeFkeyDeferrable', 'logging', 'log_user', 'mwuser(user_id) ON DELETE SET NULL' ),
216 array( 'changeFkeyDeferrable', 'oldimage', 'oi_name', 'image(img_name) ON DELETE CASCADE ON UPDATE CASCADE' ),
217 array( 'changeFkeyDeferrable', 'oldimage', 'oi_user', 'mwuser(user_id) ON DELETE SET NULL' ),
218 array( 'changeFkeyDeferrable', 'pagelinks', 'pl_from', 'page(page_id) ON DELETE CASCADE' ),
219 array( 'changeFkeyDeferrable', 'page_props', 'pp_page', 'page (page_id) ON DELETE CASCADE' ),
220 array( 'changeFkeyDeferrable', 'page_restrictions', 'pr_page', 'page(page_id) ON DELETE CASCADE' ),
221 array( 'changeFkeyDeferrable', 'protected_titles', 'pt_user', 'mwuser(user_id) ON DELETE SET NULL' ),
222 array( 'changeFkeyDeferrable', 'recentchanges', 'rc_cur_id', 'page(page_id) ON DELETE SET NULL' ),
223 array( 'changeFkeyDeferrable', 'recentchanges', 'rc_user', 'mwuser(user_id) ON DELETE SET NULL' ),
224 array( 'changeFkeyDeferrable', 'redirect', 'rd_from', 'page(page_id) ON DELETE CASCADE' ),
225 array( 'changeFkeyDeferrable', 'revision', 'rev_page', 'page (page_id) ON DELETE CASCADE' ),
226 array( 'changeFkeyDeferrable', 'revision', 'rev_user', 'mwuser(user_id) ON DELETE RESTRICT' ),
227 array( 'changeFkeyDeferrable', 'templatelinks', 'tl_from', 'page(page_id) ON DELETE CASCADE' ),
228 array( 'changeFkeyDeferrable', 'user_groups', 'ug_user', 'mwuser(user_id) ON DELETE CASCADE' ),
229 array( 'changeFkeyDeferrable', 'user_newtalk', 'user_id', 'mwuser(user_id) ON DELETE CASCADE' ),
230 array( 'changeFkeyDeferrable', 'user_properties', 'up_user', 'mwuser(user_id) ON DELETE CASCADE' ),
231 array( 'changeFkeyDeferrable', 'watchlist', 'wl_user', 'mwuser(user_id) ON DELETE CASCADE' ),
234 array( 'tsearchFixes' ),
238 protected function getOldGlobalUpdates() {
239 global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
243 # Add missing extension tables
244 foreach ( $wgExtNewTables as $tableRecord ) {
246 'addTable', $tableRecord[0], $tableRecord[1], true
250 # Add missing extension fields
251 foreach ( $wgExtPGNewFields as $fieldRecord ) {
253 'addPgField', $fieldRecord[0], $fieldRecord[1],
258 # Change altered columns
259 foreach ( $wgExtPGAlteredFields as $fieldRecord ) {
261 'changeField', $fieldRecord[0], $fieldRecord[1],
266 # Add missing extension indexes
267 foreach ( $wgExtNewIndexes as $fieldRecord ) {
269 'addPgExtIndex', $fieldRecord[0], $fieldRecord[1],
277 protected function describeTable( $table ) {
279 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
280 WHERE pg_class.relnamespace = pg_namespace.oid
281 AND attrelid=pg_class.oid AND attnum > 0
282 AND relname=%s AND nspname=%s
284 $res = $this->db
->query( sprintf( $q,
285 $this->db
->addQuotes( $table ),
286 $this->db
->addQuotes( $this->db
->getCoreSchema() ) ) );
292 foreach ( $res as $r ) {
301 function describeIndex( $idx ) {
302 // first fetch the key (which is a list of columns ords) and
303 // the table the index applies to (an oid)
305 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
307 AND pg_class.relnamespace = pg_namespace.oid
309 AND indexrelid=pg_class.oid
311 $res = $this->db
->query(
314 $this->db
->addQuotes( $this->db
->getCoreSchema() ),
315 $this->db
->addQuotes( $idx )
321 if ( !( $r = $this->db
->fetchRow( $res ) ) ) {
326 $relid = intval( $r[1] );
327 $indkeys = explode( ' ', $indkey );
330 foreach ( $indkeys as $rid ) {
332 SELECT attname FROM pg_class, pg_attribute
333 WHERE attrelid=$relid
335 AND attrelid=pg_class.oid
337 $r2 = $this->db
->query( sprintf( $query, $rid ) );
341 if ( !( $row2 = $this->db
->fetchRow( $r2 ) ) ) {
344 $colnames[] = $row2[0];
350 function fkeyDeltype( $fkey ) {
352 SELECT confdeltype FROM pg_constraint, pg_namespace
353 WHERE connamespace=pg_namespace.oid
357 $r = $this->db
->query(
360 $this->db
->addQuotes( $this->db
->getCoreSchema() ),
361 $this->db
->addQuotes( $fkey )
364 if ( !( $row = $this->db
->fetchRow( $r ) ) ) {
370 function ruleDef( $table, $rule ) {
372 SELECT definition FROM pg_rules
373 WHERE schemaname = %s
377 $r = $this->db
->query(
380 $this->db
->addQuotes( $this->db
->getCoreSchema() ),
381 $this->db
->addQuotes( $table ),
382 $this->db
->addQuotes( $rule )
385 $row = $this->db
->fetchRow( $r );
393 protected function addSequence( $ns ) {
394 if ( !$this->db
->sequenceExists( $ns ) ) {
395 $this->output( "Creating sequence $ns\n" );
396 $this->db
->query( "CREATE SEQUENCE $ns" );
400 protected function renameSequence( $old, $new ) {
401 if ( $this->db
->sequenceExists( $new ) ) {
402 $this->output( "...sequence $new already exists.\n" );
405 if ( $this->db
->sequenceExists( $old ) ) {
406 $this->output( "Renaming sequence $old to $new\n" );
407 $this->db
->query( "ALTER SEQUENCE $old RENAME TO $new" );
411 protected function renameTable( $old, $new ) {
412 if ( $this->db
->tableExists( $old ) ) {
413 $this->output( "Renaming table $old to $new\n" );
414 $old = $this->db
->realTableName( $old, "quoted" );
415 $new = $this->db
->realTableName( $new, "quoted" );
416 $this->db
->query( "ALTER TABLE $old RENAME TO $new" );
420 protected function addPgField( $table, $field, $type ) {
421 $fi = $this->db
->fieldInfo( $table, $field );
422 if ( !is_null( $fi ) ) {
423 $this->output( "...column '$table.$field' already exists\n" );
426 $this->output( "Adding column '$table.$field'\n" );
427 $this->db
->query( "ALTER TABLE $table ADD $field $type" );
431 protected function changeField( $table, $field, $newtype, $default ) {
432 $fi = $this->db
->fieldInfo( $table, $field );
433 if ( is_null( $fi ) ) {
434 $this->output( "...ERROR: expected column $table.$field to exist\n" );
438 if ( $fi->type() === $newtype )
439 $this->output( "...column '$table.$field' is already of type '$newtype'\n" );
441 $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
442 $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
443 if ( strlen( $default ) ) {
445 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
446 $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
447 $this->db
->query( $sqldef );
448 $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
450 $sql .= " USING $default";
452 $this->db
->begin( __METHOD__
);
453 $this->db
->query( $sql );
454 $this->db
->commit( __METHOD__
);
458 protected function changeNullableField( $table, $field, $null ) {
459 $fi = $this->db
->fieldInfo( $table, $field );
460 if ( is_null( $fi ) ) {
461 $this->output( "...ERROR: expected column $table.$field to exist\n" );
464 if ( $fi->isNullable() ) {
465 # # It's NULL - does it need to be NOT NULL?
466 if ( 'NOT NULL' === $null ) {
467 $this->output( "Changing '$table.$field' to not allow NULLs\n" );
468 $this->db
->query( "ALTER TABLE $table ALTER $field SET NOT NULL" );
470 $this->output( "...column '$table.$field' is already set as NULL\n" );
473 # # It's NOT NULL - does it need to be NULL?
474 if ( 'NULL' === $null ) {
475 $this->output( "Changing '$table.$field' to allow NULLs\n" );
476 $this->db
->query( "ALTER TABLE $table ALTER $field DROP NOT NULL" );
479 $this->output( "...column '$table.$field' is already set as NOT NULL\n" );
484 public function addPgIndex( $table, $index, $type ) {
485 if ( $this->db
->indexExists( $table, $index ) ) {
486 $this->output( "...index '$index' on table '$table' already exists\n" );
488 $this->output( "Creating index '$index' on table '$table' $type\n" );
489 $this->db
->query( "CREATE INDEX $index ON $table $type" );
493 public function addPgExtIndex( $table, $index, $type ) {
494 if ( $this->db
->indexExists( $table, $index ) ) {
495 $this->output( "...index '$index' on table '$table' already exists\n" );
497 $this->output( "Creating index '$index' on table '$table'\n" );
498 if ( preg_match( '/^\(/', $type ) ) {
499 $this->db
->query( "CREATE INDEX $index ON $table $type" );
501 $this->applyPatch( $type, true );
506 protected function changeFkeyDeferrable( $table, $field, $clause ) {
507 $fi = $this->db
->fieldInfo( $table, $field );
508 if ( is_null( $fi ) ) {
509 $this->output( "WARNING! Column '$table.$field' does not exist but it should! Please report this.\n" );
512 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
515 $this->output( "Altering column '$table.$field' to be DEFERRABLE INITIALLY DEFERRED\n" );
516 $conname = $fi->conname();
517 $command = "ALTER TABLE $table DROP CONSTRAINT $conname";
518 $this->db
->query( $command );
519 $command = "ALTER TABLE $table ADD CONSTRAINT $conname FOREIGN KEY ($field) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
520 $this->db
->query( $command );
523 protected function convertArchive2() {
524 if ( $this->db
->tableExists( "archive2" ) ) {
525 $this->output( "Converting 'archive2' back to normal archive table\n" );
526 if ( $this->db
->ruleExists( 'archive', 'archive_insert' ) ) {
527 $this->output( "Dropping rule 'archive_insert'\n" );
528 $this->db
->query( 'DROP RULE archive_insert ON archive' );
530 if ( $this->db
->ruleExists( 'archive', 'archive_delete' ) ) {
531 $this->output( "Dropping rule 'archive_delete'\n" );
532 $this->db
->query( 'DROP RULE archive_delete ON archive' );
534 $this->applyPatch( 'patch-remove-archive2.sql' );
536 $this->output( "...obsolete table 'archive2' does not exist\n" );
540 protected function checkOiDeleted() {
541 if ( $this->db
->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
542 $this->output( "Changing 'oldimage.oi_deleted' to type 'smallint'\n" );
543 $this->db
->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
544 $this->db
->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
545 $this->db
->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
547 $this->output( "...column 'oldimage.oi_deleted' is already of type 'smallint'\n" );
551 protected function checkOiNameConstraint() {
552 if ( $this->db
->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
553 $this->output( "...table 'oldimage' has correct cascading delete/update foreign key to image\n" );
555 if ( $this->db
->hasConstraint( "oldimage_oi_name_fkey" ) ) {
556 $this->db
->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
558 if ( $this->db
->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
559 $this->db
->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
561 $this->output( "Making foreign key on table 'oldimage' (to image) a cascade delete/update\n" );
562 $this->db
->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
563 "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" );
567 protected function checkPageDeletedTrigger() {
568 if ( !$this->db
->triggerExists( 'page', 'page_deleted' ) ) {
569 $this->output( "Adding function and trigger 'page_deleted' to table 'page'\n" );
570 $this->applyPatch( 'patch-page_deleted.sql' );
572 $this->output( "...table 'page' has 'page_deleted' trigger\n" );
576 protected function checkRcCurIdNullable(){
577 $fi = $this->db
->fieldInfo( 'recentchanges', 'rc_cur_id' );
578 if ( !$fi->isNullable() ) {
579 $this->output( "Removing NOT NULL constraint from 'recentchanges.rc_cur_id'\n" );
580 $this->applyPatch( 'patch-rc_cur_id-not-null.sql' );
582 $this->output( "...column 'recentchanges.rc_cur_id' has a NOT NULL constraint\n" );
586 protected function checkPagelinkUniqueIndex() {
587 $pu = $this->describeIndex( 'pagelink_unique' );
588 if ( !is_null( $pu ) && ( $pu[0] != 'pl_from' ||
$pu[1] != 'pl_namespace' ||
$pu[2] != 'pl_title' ) ) {
589 $this->output( "Dropping obsolete version of index 'pagelink_unique index'\n" );
590 $this->db
->query( 'DROP INDEX pagelink_unique' );
593 $this->output( "...obsolete version of index 'pagelink_unique index' does not exist\n" );
596 if ( is_null( $pu ) ) {
597 $this->output( "Creating index 'pagelink_unique index'\n" );
598 $this->db
->query( 'CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)' );
600 $this->output( "...index 'pagelink_unique_index' already exists\n" );
604 protected function checkRevUserFkey() {
605 if ( $this->fkeyDeltype( 'revision_rev_user_fkey' ) == 'r' ) {
606 $this->output( "...constraint 'revision_rev_user_fkey' is ON DELETE RESTRICT\n" );
608 $this->output( "Changing constraint 'revision_rev_user_fkey' to ON DELETE RESTRICT\n" );
609 $this->applyPatch( 'patch-revision_rev_user_fkey.sql' );
613 protected function checkIpbAdress() {
614 if ( $this->db
->indexExists( 'ipblocks', 'ipb_address' ) ) {
615 $this->output( "Removing deprecated index 'ipb_address'...\n" );
616 $this->db
->query( 'DROP INDEX ipb_address' );
618 if ( $this->db
->indexExists( 'ipblocks', 'ipb_address_unique' ) ) {
619 $this->output( "...have ipb_address_unique\n" );
621 $this->output( "Adding ipb_address_unique index\n" );
622 $this->applyPatch( 'patch-ipb_address_unique.sql' );
626 protected function checkIwlPrefix() {
627 if ( $this->db
->indexExists( 'iwlinks', 'iwl_prefix' ) ) {
628 $this->output( "Replacing index 'iwl_prefix' with 'iwl_prefix_from_title'...\n" );
629 $this->applyPatch( 'patch-rename-iwl_prefix.sql' );
633 protected function tsearchFixes() {
634 # Tweak the page_title tsearch2 trigger to filter out slashes
635 # This is create or replace, so harmless to call if not needed
636 $this->output( "Refreshing ts2_page_title()...\n" );
637 $this->applyPatch( 'patch-ts2pagetitle.sql' );
639 # If the server is 8.3 or higher, rewrite the tsearch2 triggers
640 # in case they have the old 'default' versions
641 # Gather version numbers in case we need them
642 if ( $this->db
->getServerVersion() >= 8.3 ) {
643 $this->output( "Rewriting tsearch2 triggers...\n" );
644 $this->applyPatch( 'patch-tsearch2funcs.sql' );