sql/template_patch.sqlite
-- ---------------------------------------------------------------------------------------------------
CREATE TEMPORARY VIEW exp_ver AS SELECT "___EXPECTED_SCHEMA_VERSION___" AS expected_version;
.bail ON
SELECT ('The patch only applies to schema version '
|| expected_version
|| ', but the current schema version is '
|| meta_value
|| ', skipping the rest.') AS ''
FROM hive_meta JOIN exp_ver WHERE meta_key='hive_sql_schema_version' AND meta_value<>expected_version;
INSERT INTO hive_meta (meta_key, meta_value)
SELECT hm.* FROM hive_meta AS hm JOIN exp_ver WHERE meta_key='hive_sql_schema_version' AND meta_value<>expected_version;
SELECT ('The patch seems to be compatible with schema version '
|| expected_version
|| ', applying the patch...') AS '' FROM exp_ver;
-- ----------------------------------<actual_patch> -------------------------------------------------
-- ----------------------------------</actual_patch> -------------------------------------------------
-- increase the schema version by one:
UPDATE hive_meta SET meta_value=meta_value+1 WHERE meta_key='hive_sql_schema_version';