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200 lines
12 KiB
TypeScript
200 lines
12 KiB
TypeScript
const cockroachdbFilters = `
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AND connamespace::regnamespace::text NOT IN ('pg_extension', 'crdb_internal')
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`;
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const cockroachdbColFilter = `
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AND cols.table_schema NOT IN ('pg_extension', 'crdb_internal')
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`;
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const cockroachdbTableFilter = `
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AND tbls.table_schema NOT IN ('pg_extension', 'crdb_internal')
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`;
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const cockroachdbIndexesFilter = `
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WHERE schema_name NOT IN ('pg_extension', 'crdb_internal')
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`;
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const cockroachdbViewsFilter = `
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AND views.schemaname NOT IN ('pg_extension', 'crdb_internal')
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`;
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export const cockroachdbQuery = `${`/* CockroachDB - PostgreSQL edition */`}
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WITH fk_info AS (
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SELECT array_to_string(array_agg(CONCAT('{"schema":"', replace(schema_name::TEXT, '"', ''), '"',
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',"table":"', replace(table_name::TEXT, '"', ''), '"',
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',"column":"', replace(fk_column::TEXT, '"', ''), '"',
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',"foreign_key_name":"', foreign_key_name::TEXT, '"',
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',"reference_schema":"', COALESCE(reference_schema::TEXT, 'public'), '"',
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',"reference_table":"', reference_table::TEXT, '"',
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',"reference_column":"', reference_column::TEXT, '"',
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',"fk_def":"', replace(fk_def::TEXT, '"', ''),
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'"}')), ',') as fk_metadata
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FROM (
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SELECT c.conname AS foreign_key_name,
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n.nspname AS schema_name,
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CASE
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WHEN position('.' in conrelid::regclass::text) > 0
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THEN split_part(conrelid::regclass::text, '.', 2)
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ELSE conrelid::regclass::text
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END AS table_name,
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a.attname AS fk_column,
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nr.nspname AS reference_schema,
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CASE
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WHEN position('.' in confrelid::regclass::text) > 0
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THEN split_part(confrelid::regclass::text, '.', 2)
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ELSE confrelid::regclass::text
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END AS reference_table,
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af.attname AS reference_column,
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pg_get_constraintdef(c.oid) as fk_def
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FROM
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pg_constraint AS c
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JOIN
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pg_attribute AS a ON a.attnum = ANY(c.conkey) AND a.attrelid = c.conrelid
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JOIN
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pg_class AS cl ON cl.oid = c.conrelid
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JOIN
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pg_namespace AS n ON n.oid = cl.relnamespace
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JOIN
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pg_attribute AS af ON af.attnum = ANY(c.confkey) AND af.attrelid = c.confrelid
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JOIN
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pg_class AS clf ON clf.oid = c.confrelid
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JOIN
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pg_namespace AS nr ON nr.oid = clf.relnamespace
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WHERE
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c.contype = 'f'
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AND connamespace::regnamespace::text NOT IN ('information_schema', 'pg_catalog')${cockroachdbFilters}
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) AS x
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), pk_info AS (
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SELECT array_to_string(array_agg(CONCAT('{"schema":"', replace(schema_name::TEXT, '"', ''), '"',
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',"table":"', replace(pk_table::TEXT, '"', ''), '"',
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',"column":"', replace(pk_column::TEXT, '"', ''), '"',
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',"pk_def":"', replace(pk_def::TEXT, '"', ''),
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'"}')), ',') AS pk_metadata
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FROM (
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SELECT connamespace::regnamespace::text AS schema_name,
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CASE
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WHEN strpos(conrelid::regclass::text, '.') > 0
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THEN split_part(conrelid::regclass::text, '.', 2)
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ELSE conrelid::regclass::text
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END AS pk_table,
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unnest(string_to_array(substring(pg_get_constraintdef(oid) FROM '\\((.*?)\\)'), ',')) AS pk_column,
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pg_get_constraintdef(oid) as pk_def
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FROM
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pg_constraint
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WHERE
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contype = 'p'
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AND connamespace::regnamespace::text NOT IN ('information_schema', 'pg_catalog')${cockroachdbFilters}
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) AS y
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),
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indexes_cols AS (
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SELECT tnsp.nspname AS schema_name,
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trel.relname AS table_name,
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null AS index_size,
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irel.relname AS index_name,
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am.amname AS index_type,
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a.attname AS col_name,
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(CASE WHEN i.indisunique = TRUE THEN 'true' ELSE 'false' END) AS is_unique,
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irel.reltuples AS cardinality,
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1 + Array_position(i.indkey, a.attnum) AS column_position,
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CASE o.OPTION & 1 WHEN 1 THEN 'DESC' ELSE 'ASC' END AS direction
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FROM pg_index AS i
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JOIN pg_class AS trel ON trel.oid = i.indrelid
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JOIN pg_namespace AS tnsp ON trel.relnamespace = tnsp.oid
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JOIN pg_class AS irel ON irel.oid = i.indexrelid
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JOIN pg_am AS am ON irel.relam = am.oid
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CROSS JOIN LATERAL unnest (i.indkey)
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WITH ORDINALITY AS c (colnum, ordinality) LEFT JOIN LATERAL unnest (i.indoption)
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WITH ORDINALITY AS o (option, ordinality)
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ON c.ordinality = o.ordinality JOIN pg_attribute AS a ON trel.oid = a.attrelid AND a.attnum = c.colnum
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WHERE tnsp.nspname NOT LIKE 'pg_%'
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GROUP BY tnsp.nspname, trel.relname, irel.relname, am.amname, i.indisunique, i.indexrelid, irel.reltuples, a.attname, Array_position(i.indkey, a.attnum), o.OPTION, i.indpred
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),
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cols AS (
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SELECT array_to_string(array_agg(CONCAT('{"schema":"', cols.table_schema::TEXT,
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'","table":"', cols.table_name::TEXT,
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'","name":"', cols.column_name::TEXT,
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'","ordinal_position":', cols.ordinal_position::TEXT,
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',"type":"', LOWER(replace(cols.data_type::TEXT, '"', '')),
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'","character_maximum_length":"', COALESCE(cols.character_maximum_length::TEXT, 'null'),
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'","precision":',
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CASE
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WHEN cols.data_type = 'numeric' OR cols.data_type = 'decimal'
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THEN CONCAT('{"precision":', COALESCE(cols.numeric_precision::TEXT, 'null'),
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',"scale":', COALESCE(cols.numeric_scale::TEXT, 'null'), '}')
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ELSE 'null'
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END,
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',"nullable":', CASE WHEN (cols.IS_NULLABLE = 'YES') THEN true ELSE false END::TEXT,
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',"default":"', null,
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'","collation":"', COALESCE(cols.COLLATION_NAME::TEXT, ''),
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'","comment":"', COALESCE(replace(replace(dsc.description::TEXT, '"', '\\"'), '\\x', '\\\\x'), ''),
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'","is_identity":', CASE
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WHEN cols.is_identity = 'YES' THEN 'true'
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WHEN cols.column_default IS NOT NULL AND cols.column_default LIKE 'nextval(%' THEN 'true'
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WHEN cols.column_default LIKE 'unique_rowid()%' THEN 'true'
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ELSE 'false'
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END,
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'}')), ',') AS cols_metadata
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FROM information_schema.columns cols
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LEFT JOIN pg_catalog.pg_class c
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ON c.relname = cols.table_name
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JOIN pg_catalog.pg_namespace n
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ON n.oid = c.relnamespace AND n.nspname = cols.table_schema
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LEFT JOIN pg_catalog.pg_description dsc ON dsc.objoid = c.oid
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AND dsc.objsubid = cols.ordinal_position
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WHERE cols.table_schema NOT IN ('information_schema', 'pg_catalog')${cockroachdbColFilter}
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), indexes_metadata AS (
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SELECT array_to_string(array_agg(CONCAT('{"schema":"', schema_name::TEXT,
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'","table":"', table_name::TEXT,
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'","name":"', index_name::TEXT,
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'","column":"', replace(col_name::TEXT, '"', E'"'),
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'","index_type":"', index_type::TEXT,
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'","cardinality":', COALESCE(cardinality::TEXT, '0'),
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',"size":', COALESCE(index_size::TEXT, 'null'),
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',"unique":', is_unique::TEXT,
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',"column_position":', column_position::TEXT,
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',"direction":"', LOWER(direction::TEXT),
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'"}')), ',') AS indexes_metadata
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FROM indexes_cols x${cockroachdbIndexesFilter}
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), tbls AS (
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SELECT array_to_string(array_agg(CONCAT('{',
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'"schema":"', tbls.TABLE_SCHEMA::TEXT, '",',
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'"table":"', tbls.TABLE_NAME::TEXT, '",',
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'"rows":', COALESCE((SELECT s.n_live_tup::TEXT
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FROM pg_stat_user_tables s
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WHERE tbls.TABLE_SCHEMA = s.schemaname AND tbls.TABLE_NAME = s.relname),
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'0'), ', "type":"', tbls.TABLE_TYPE::TEXT, '",', '"engine":"",', '"collation":"",',
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'"comment":"', COALESCE(replace(replace(dsc.description::TEXT, '"', '\\"'), '\\x', '\\\\x'), ''),
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'"}'
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)),
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',') AS tbls_metadata
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FROM information_schema.tables tbls
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LEFT JOIN pg_catalog.pg_class c ON c.relname = tbls.TABLE_NAME
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JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
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AND n.nspname = tbls.TABLE_SCHEMA
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LEFT JOIN pg_catalog.pg_description dsc ON dsc.objoid = c.oid
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AND dsc.objsubid = 0
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WHERE tbls.TABLE_SCHEMA NOT IN ('information_schema', 'pg_catalog')${cockroachdbTableFilter}
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), config AS (
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SELECT array_to_string(
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array_agg(CONCAT('{"name":"', conf.name, '","value":"', replace(conf.setting, '"', E'"'), '"}')),
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',') AS config_metadata
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FROM pg_settings conf
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), views AS (
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SELECT array_to_string(array_agg(CONCAT('{"schema":"', views.schemaname::TEXT,
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'","view_name":"', viewname::TEXT,
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'","view_definition":""}')),
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',') AS views_metadata
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FROM pg_views views
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WHERE views.schemaname NOT IN ('information_schema', 'pg_catalog')${cockroachdbViewsFilter}
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)
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SELECT CONCAT('{ "fk_info": [', COALESCE(fk_metadata, ''),
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'], "pk_info": [', COALESCE(pk_metadata, ''),
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'], "columns": [', COALESCE(cols_metadata, ''),
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'], "indexes": [', COALESCE(indexes_metadata, ''),
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'], "tables":[', COALESCE(tbls_metadata, ''),
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'], "views":[', COALESCE(views_metadata, ''),
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'], "database_name": "', CURRENT_DATABASE(), '', '", "version": "', '',
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'"}') AS metadata_json_to_import
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FROM fk_info, pk_info, cols, indexes_metadata, tbls, config, views;
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`;
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