346 lines
9.6 KiB
Plaintext
346 lines
9.6 KiB
Plaintext
================================================================================
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create an empty table
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================================================================================
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create table foo();
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--------------------------------------------------------------------------------
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(source_file
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(create_table_statement
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(identifier)
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)
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)
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================================================================================
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create temporary table
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================================================================================
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create temp table foo();
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create temporary table foo();
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--------------------------------------------------------------------------------
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(source_file
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(create_table_statement
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(temporary)
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(identifier)
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)
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(create_table_statement
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(temporary)
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(identifier)
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)
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)
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================================================================================
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create table if not exists
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================================================================================
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create table if not exists foo();
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--------------------------------------------------------------------------------
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(source_file
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(create_table_statement
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(if_not_exists)
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(identifier)
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)
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)
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================================================================================
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create unlogged table
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================================================================================
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create unlogged table foo();
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--------------------------------------------------------------------------------
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(source_file
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(create_table_statement
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(unlogged)
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(identifier)
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)
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)
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================================================================================
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create table with predefined types
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================================================================================
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create table foo(
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col1 numeric,
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col2 numeric(2),
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col3 numeric(2, 4),
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col4 varchar,
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col5 varchar(255)
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);
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--------------------------------------------------------------------------------
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(source_file
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(create_table_statement
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(identifier)
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(create_table_item
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(table_column_item
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(identifier)
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(predefined_type)
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)
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)
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(create_table_item
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(table_column_item
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(identifier)
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(predefined_type (precision (number)))
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)
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)
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(create_table_item
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(table_column_item
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(identifier)
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(predefined_type (precision (number) (number)))
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)
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)
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(create_table_item
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(table_column_item
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(identifier)
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(predefined_type)
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)
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)
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(create_table_item
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(table_column_item
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(identifier)
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(predefined_type (type_length (number)))
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)
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)
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)
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)
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================================================================================
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constraints with deferred
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================================================================================
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create table foo(
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col1 text not null deferrable,
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col2 bigint not null deferrable initially immediate,
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col3 numeric(2, 4) null deferrable initially deferred
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);
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--------------------------------------------------------------------------------
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(source_file
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(create_table_statement
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(identifier)
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(create_table_item
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(table_column_item
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(identifier)
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(identifier)
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(column_constraint
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(column_constraint_ty)
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(constraint_when))))
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(create_table_item
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(table_column_item
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(identifier)
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(identifier)
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(column_constraint
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(column_constraint_ty)
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(constraint_when))))
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(create_table_item
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(table_column_item
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(identifier)
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(predefined_type
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(precision
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(number)
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(number)))
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(column_constraint
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(column_constraint_ty)
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(constraint_when))))))
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================================================================================
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column constraints
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================================================================================
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create table foo(
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col1 text not null primary key check( col1 > b),
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col2 bigint null default 25 deferrable initially immediate constraint a_name unique,
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col3 numeric(2, 4) null deferrable initially deferred,
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col4 int references foo.baz
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);
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--------------------------------------------------------------------------------
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(source_file
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(create_table_statement
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(identifier)
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(create_table_item
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(table_column_item
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(identifier)
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(identifier)
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(column_constraint
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(column_constraint_ty))
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(column_constraint
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(column_constraint_ty))
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(column_constraint
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(column_constraint_ty
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(op_expression
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(identifier)
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(comparison_op)
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(identifier))))))
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(create_table_item
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(table_column_item
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(identifier)
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(identifier)
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(column_constraint
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(column_constraint_ty))
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(column_constraint
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(column_constraint_ty
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(number))
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(constraint_when))
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(column_constraint
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(identifier)
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(column_constraint_ty))))
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(create_table_item
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(table_column_item
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(identifier)
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(predefined_type
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(precision
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(number)
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(number)))
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(column_constraint
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(column_constraint_ty)
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(constraint_when))))
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(create_table_item
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(table_column_item
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(identifier)
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(identifier)
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(column_constraint
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(column_constraint_ty
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(constraint_foreign_key
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(identifier))))))))
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================================================================================
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column fk references
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================================================================================
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create table foo(
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col int references foo.baz(col1, col2),
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col int references foo.baz on delete set default,
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col int references foo.baz on delete no action on update cascade,
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col int references foo.baz on delete restrict on update set null
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);
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--------------------------------------------------------------------------------
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(source_file
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(create_table_statement
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(identifier)
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(create_table_item
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(table_column_item
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(identifier)
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(identifier)
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(column_constraint
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(column_constraint_ty
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(constraint_foreign_key
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(identifier)
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(identifier)
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(identifier))))))
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(create_table_item
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(table_column_item
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(identifier)
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(identifier)
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(column_constraint
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(column_constraint_ty
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(constraint_foreign_key
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(identifier)
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(fk_action
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(fk_ref_action)))))))
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(create_table_item
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(table_column_item
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(identifier)
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(identifier)
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(column_constraint
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(column_constraint_ty
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(constraint_foreign_key
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(identifier)
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(fk_action
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(fk_ref_action))
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(fk_action
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(fk_ref_action)))))))
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(create_table_item
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(table_column_item
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(identifier)
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(identifier)
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(column_constraint
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(column_constraint_ty
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(constraint_foreign_key
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(identifier)
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(fk_action
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(fk_ref_action))
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(fk_action
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(fk_ref_action)))))))))
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================================================================================
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table constraints - check
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================================================================================
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create table foo(
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constraint one check (column_a > 5),
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check (column_b > 5)
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);
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--------------------------------------------------------------------------------
|
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|
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(source_file
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(create_table_statement
|
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(identifier)
|
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(create_table_item
|
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(table_constraint
|
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(identifier)
|
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(table_constraint_ty
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(op_expression
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(identifier)
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(comparison_op)
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(number)))))
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(create_table_item
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(table_constraint
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(table_constraint_ty
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(op_expression
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(identifier)
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(comparison_op)
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(number)))))))
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================================================================================
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table constraints - unique
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================================================================================
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create table foo(
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unique (column_a, column_b)
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);
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--------------------------------------------------------------------------------
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(source_file
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(create_table_statement
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(identifier)
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(create_table_item
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(table_constraint
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(table_constraint_ty
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(identifier)
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(identifier))))))
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================================================================================
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table constraints - pk
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================================================================================
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create table foo(
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primary key (column_a, column_b)
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);
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--------------------------------------------------------------------------------
|
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(source_file
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(create_table_statement
|
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(identifier)
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(create_table_item
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(table_constraint
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(table_constraint_ty
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(identifier)
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(identifier))))))
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================================================================================
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table constraints - fk
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================================================================================
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create table foo(
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foreign key (column_a, column_b) references foo(name, age, bar)
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);
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--------------------------------------------------------------------------------
|
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(source_file
|
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(create_table_statement
|
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(identifier)
|
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(create_table_item
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(table_constraint
|
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(table_constraint_ty
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(identifier)
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(identifier)
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(constraint_foreign_key
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(identifier)
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(identifier)
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(identifier)
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(identifier)))))))
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