59 lines
1.8 KiB
SQL
59 lines
1.8 KiB
SQL
# name: test/sql/table_function/duckdb_constraints.test
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# description: Test duckdb_constraints function
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# group: [table_function]
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statement ok
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create table integers(i int primary key, check (i < 10));
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statement ok
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create table test(i varchar unique, k varchar, check(len(i || k) < 10));
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statement ok
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create table fk_integers(j int, foreign key (j) references integers(i));
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statement ok
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create table fk_integers_2(k int, foreign key (k) references integers(i));
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statement ok nosort duckdb_col
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SELECT * FROM duckdb_constraints();
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statement ok nosort duckdb_col
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SELECT * FROM duckdb_constraints;
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query IIII
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SELECT table_name, constraint_index, constraint_type, UNNEST(constraint_column_names) col_name FROM duckdb_constraints ORDER BY table_name, constraint_index, col_name
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----
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fk_integers 0 FOREIGN KEY j
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fk_integers_2 1 FOREIGN KEY k
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integers 2 PRIMARY KEY i
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integers 3 CHECK i
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integers 4 NOT NULL i
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test 5 UNIQUE i
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test 6 CHECK i
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test 6 CHECK k
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query II
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SELECT constraint_name, unique_constraint_name FROM information_schema.referential_constraints ORDER BY constraint_name
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----
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fk_integers_2_k_i_fkey integers_i_pkey
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fk_integers_j_i_fkey integers_i_pkey
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query IIII
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SELECT column_name, constraint_name, table_name, position_in_unique_constraint FROM information_schema.key_column_usage ORDER BY constraint_name
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----
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k fk_integers_2_k_i_fkey fk_integers_2 1
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j fk_integers_j_i_fkey fk_integers 1
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i integers_i_pkey integers NULL
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i test_i_key test NULL
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query III
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SELECT constraint_name, table_name, constraint_type FROM information_schema.table_constraints ORDER BY constraint_name;
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----
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fk_integers_2_k_i_fkey fk_integers_2 FOREIGN KEY
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fk_integers_j_i_fkey fk_integers FOREIGN KEY
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integers_i_check integers CHECK
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integers_i_not_null integers CHECK
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integers_i_pkey integers PRIMARY KEY
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test_i_k_check test CHECK
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test_i_key test UNIQUE
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