reindexdb: add page (#18480)

Author: fabioperrella

pages/common/reindexdb.md

@@ -0,0 +1,36 @@
+# reindexdb
+
+> Rebuild indexes in a PostgreSQL database.
+> More information: <https://www.postgresql.org/docs/current/app-reindexdb.html>.
+
+- Reindex a specific database:
+
+`reindexdb {{database_name}}`
+
+- Reindex a specific database using connection options:
+
+`reindexdb {{database_name}} {{[-h|--host]}} {{hostname}} {{[-p|--port]}} {{port}} {{[-U|--username]}} {{username}}`
+
+- Reindex all databases:
+
+`reindexdb {{[-a|--all]}}`
+
+- Reindex a specific table in a database:
+
+`reindexdb {{database_name}} {{[-t|--table]}} {{table_name}}`
+
+- Reindex a specific index in a database:
+
+`reindexdb {{database_name}} {{[-i|--index]}} {{index_name}}`
+
+- Reindex a specific schema in a database:
+
+`reindexdb {{database_name}} {{[-S|--schema]}} {{schema_name}}`
+
+- Reindex with verbose output:
+
+`reindexdb {{database_name}} {{[-v|--verbose]}}`
+
+- Reindex a database using multiple parallel jobs:
+
+`reindexdb {{database_name}} {{[-j|--jobs]}} {{number_of_jobs}}`