169 lines
4.6 KiB
Plaintext
169 lines
4.6 KiB
Plaintext
================================================================================
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update one field
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================================================================================
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update items set foo = 'bar';
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--------------------------------------------------------------------------------
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(source_file
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(update_statement
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(identifier)
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(update_set
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(identifier)
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(update_value
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(string)))))
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================================================================================
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alias
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================================================================================
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update items as t set foo = 'bar';
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--------------------------------------------------------------------------------
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(source_file
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(update_statement
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(identifier)
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(identifier)
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(update_set
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(identifier)
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(update_value
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(string)))))
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================================================================================
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update many fields
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================================================================================
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update t set col1 = val1, col2 = default returning foo, *;
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--------------------------------------------------------------------------------
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(source_file
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(update_statement
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(identifier)
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(update_set
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(identifier)
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(update_value
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(identifier)))
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(update_set
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(identifier)
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(update_value))
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(returning
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(select_item
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(identifier))
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(select_item
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(star)))))
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================================================================================
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update many fields(1)
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================================================================================
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update t set (col1, col2) = (val1, val2);
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--------------------------------------------------------------------------------
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(source_file
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(update_statement
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(identifier)
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(update_set
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(identifier)
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(identifier)
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(update_value
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(identifier))
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(update_value
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(identifier)))))
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================================================================================
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update where
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================================================================================
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update t set foo = bar where column1 = 'magic';
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--------------------------------------------------------------------------------
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(source_file
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(update_statement
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(identifier)
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(update_set
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(identifier)
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(update_value
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(identifier)))
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(where_filter
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(op_expression
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(identifier)
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(comparison_op)
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(string)))))
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================================================================================
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update where subselect
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================================================================================
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UPDATE t SET a = b + 1 WHERE id = (SELECT foo FROM bar WHERE c = 'd');
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--------------------------------------------------------------------------------
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(source_file
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(update_statement
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(identifier)
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(update_set
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(identifier)
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(update_value
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(op_expression
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(identifier)
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(number))))
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(where_filter
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(op_expression
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(identifier)
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(comparison_op)
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(select_statement
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(select_item
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(identifier))
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(select_from
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(from_item
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(from_table
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(identifier))))
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(select_where
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(where_filter
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(op_expression
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(identifier)
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(comparison_op)
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(string)))))))))
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================================================================================
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update from
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================================================================================
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UPDATE foo SET bar = bar + 1 FROM t WHERE b = 'z';
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--------------------------------------------------------------------------------
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(source_file
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(update_statement
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(identifier)
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(update_set
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(identifier)
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(update_value
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(op_expression
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(identifier)
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(number))))
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(from_item
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(from_table
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(identifier)))
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(where_filter
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(op_expression
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(identifier)
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(comparison_op)
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(string)))))
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================================================================================
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with cte
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================================================================================
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with foo as (select * from bar)
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update foo set bar = 1;
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--------------------------------------------------------------------------------
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(source_file
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(update_statement
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(with_query
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(with_query_item
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(identifier)
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(select_statement
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(select_item
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(star))
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(select_from
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(from_item
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(from_table
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(identifier)))))))
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(identifier)
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(update_set
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(identifier)
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(update_value
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(number)))))
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