![]() Index names must be unique within the table and follow these identifier rules. For each index, the column(s) to index must be specified optionally, a name can be specified. Use the SHOW CREATE statement to view them at the table level.Īn optional, comma-separated list of index definitions. ![]() Any PRIMARY KEY, UNIQUE, and CHECK constraints defined at the column level are moved to the table-level as part of the table's creation. You can optionally specify a column qualification (e.g., a column-level constraint). Column names must be unique within the table but can have the same name as indexes or constraints. Each column requires a name/identifier and data type. It's therefore not recommended to use the name excluded for any of your tables.Ī comma-separated list of column definitions. The UPSERT and INSERT ON CONFLICT statements use a temporary table called excluded to handle uniqueness conflicts during execution. When the parent database is not set as the default, the name must be formatted as database.name. The name of the table to create, which must be unique within its database and follow these identifier rules. Note that IF NOT EXISTS checks the table name only it does not check if an existing table has the same columns, indexes, constraints, etc., of the new table. Support for temporary tables is in preview.Ĭreate a new table only if a table of the same name does not already exist in the database if one does exist, do not return an error. Note that the LOCAL, GLOBAL, and UNLOGGED options are no-ops, allowed by the parser for PostgreSQL compatibility. For more information, see Temporary Tables. Undo/redo functions are fully supported in diagram editing.Tip:To create a table from the results of a SELECT statement, use CREATE TABLE AS.ĭefines the table as a session-scoped temporary table.
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