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https://github.com/hasura/graphql-engine.git
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a66fb42ce2
* Separate DB and metadata migrations * Refactor Migrate.hs to generate list of migrations at compile-time * Replace ginger with shakespeare to improve performance * Improve migration log messages
107 lines
3.0 KiB
SQL
107 lines
3.0 KiB
SQL
CREATE OR REPLACE VIEW hdb_catalog.hdb_primary_key AS
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SELECT
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tc.table_schema,
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tc.table_name,
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tc.constraint_name,
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json_agg(constraint_column_usage.column_name) AS columns
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FROM
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(
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information_schema.table_constraints tc
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JOIN (
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SELECT
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x.tblschema AS table_schema,
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x.tblname AS table_name,
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x.colname AS column_name,
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x.cstrname AS constraint_name
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FROM
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(
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SELECT
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DISTINCT nr.nspname,
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r.relname,
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a.attname,
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c.conname
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FROM
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pg_namespace nr,
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pg_class r,
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pg_attribute a,
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pg_depend d,
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pg_namespace nc,
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pg_constraint c
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WHERE
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(
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(nr.oid = r.relnamespace)
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AND (r.oid = a.attrelid)
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AND (d.refclassid = ('pg_class' :: regclass) :: oid)
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AND (d.refobjid = r.oid)
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AND (d.refobjsubid = a.attnum)
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AND (d.classid = ('pg_constraint' :: regclass) :: oid)
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AND (d.objid = c.oid)
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AND (c.connamespace = nc.oid)
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AND (c.contype = 'c' :: "char")
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AND (
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r.relkind = ANY (ARRAY ['r'::"char", 'p'::"char"])
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)
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AND (NOT a.attisdropped)
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)
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UNION ALL
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SELECT
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nr.nspname,
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r.relname,
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a.attname,
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c.conname
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FROM
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pg_namespace nr,
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pg_class r,
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pg_attribute a,
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pg_namespace nc,
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pg_constraint c
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WHERE
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(
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(nr.oid = r.relnamespace)
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AND (r.oid = a.attrelid)
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AND (nc.oid = c.connamespace)
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AND (
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r.oid = CASE
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c.contype
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WHEN 'f' :: "char" THEN c.confrelid
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ELSE c.conrelid
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END
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)
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AND (
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a.attnum = ANY (
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CASE
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c.contype
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WHEN 'f' :: "char" THEN c.confkey
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ELSE c.conkey
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END
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)
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)
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AND (NOT a.attisdropped)
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AND (
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c.contype = ANY (ARRAY ['p'::"char", 'u'::"char", 'f'::"char"])
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)
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AND (
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r.relkind = ANY (ARRAY ['r'::"char", 'p'::"char"])
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)
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)
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) x(
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tblschema,
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tblname,
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colname,
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cstrname
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)
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) constraint_column_usage ON (
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(
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(tc.constraint_name) :: text = (constraint_column_usage.constraint_name) :: text
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AND (tc.table_schema) :: text = (constraint_column_usage.table_schema) :: text
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AND (tc.table_name) :: text = (constraint_column_usage.table_name) :: text
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)
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)
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)
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WHERE
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((tc.constraint_type) :: text = 'PRIMARY KEY' :: text)
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GROUP BY
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tc.table_schema,
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tc.table_name,
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tc.constraint_name;
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