mirror of https://github.com/citusdata/citus.git
48 lines
1.7 KiB
Plaintext
48 lines
1.7 KiB
Plaintext
SET search_path TO "prepared statements";
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-- test function evaluation with parameters in an expression
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PREPARE prepared_function_evaluation_insert(int) AS
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INSERT INTO prepare_func_table (key, value1) VALUES ($1+1, 0*random());
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-- execute 7 times to trigger prepared statement usage
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EXECUTE prepared_function_evaluation_insert(1);
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EXECUTE prepared_function_evaluation_insert(2);
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EXECUTE prepared_function_evaluation_insert(3);
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EXECUTE prepared_function_evaluation_insert(4);
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EXECUTE prepared_function_evaluation_insert(5);
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EXECUTE prepared_function_evaluation_insert(6);
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EXECUTE prepared_function_evaluation_insert(7);
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SELECT key, value1 FROM prepare_func_table ORDER BY key, value1;
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key | value1
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---------------------------------------------------------------------
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2 | 0
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3 | 0
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4 | 0
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5 | 0
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6 | 0
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7 | 0
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8 | 0
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(7 rows)
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TRUNCATE prepare_func_table;
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-- make it a bit harder: parameter wrapped in a function call
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PREPARE wrapped_parameter_evaluation(text,text[]) AS
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INSERT INTO prepare_func_table (key,value2) VALUES ($1,array_to_string($2,''));
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EXECUTE wrapped_parameter_evaluation('key', ARRAY['value']);
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EXECUTE wrapped_parameter_evaluation('key', ARRAY['value']);
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EXECUTE wrapped_parameter_evaluation('key', ARRAY['value']);
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EXECUTE wrapped_parameter_evaluation('key', ARRAY['value']);
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EXECUTE wrapped_parameter_evaluation('key', ARRAY['value']);
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EXECUTE wrapped_parameter_evaluation('key', ARRAY['value']);
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EXECUTE wrapped_parameter_evaluation('key', ARRAY['value']);
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SELECT key, value2 FROM prepare_func_table ORDER BY key, value2;
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key | value2
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---------------------------------------------------------------------
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key | value
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key | value
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key | value
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key | value
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key | value
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key | value
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key | value
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(7 rows)
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