crsql_begin_alter

For an end to end overview of migrations, see migrations.

crsql_begin_alter starts an alteration of a crr. If a transaction has not already begun, crsql_begin_alter starts one. Any call to crsql_begin_alter must be followed by a call to crsql_commit_alter after the schema alteration is complete.

Usage:

SELECT crsql_begin_alter('table_name');

Example:

SELECT crsql_begin_alter('foo');
ALTER TABLE foo ADD COLUMN c TEXT;
SELECT crsql_commit_alter('foo');