diff --git a/src/test/regress/expected/numeric.out b/src/test/regress/expected/numeric.out new file mode 100644 index 9d68145..46b0c72 *** a/src/test/regress/expected/numeric.out --- b/src/test/regress/expected/numeric.out *************** select * from generate_series(1::numeric *** 1499,1501 **** --- 1499,1571 ---- 3 | 4 (10 rows) + -- + -- Test code path for high-precision output + -- + SELECT to_char(float8 '99999999999', '9999999999999999D99999999'); + to_char + ---------------------------- + 99999999999.00000000 + (1 row) + + SELECT to_char(float8 '99999999999', '9999999999999999D' || repeat('9', 1000)); + to_char + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + 99999999999.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 + (1 row) + + SELECT to_char(float8 '1e9','999999999999999999999D9'); + to_char + -------------------------- + 1000000000.0 + (1 row) + + SELECT to_char(float8 '1e20','999999999999999999999D9'); + to_char + -------------------------- + 100000000000000000000.0 + (1 row) + + SELECT to_char(1e20, '999999999999999999999D9'); + to_char + -------------------------- + 100000000000000000000.0 + (1 row) + + SELECT to_char(float8 '1.123456789123456789', '9.' || repeat('9', 55)); + to_char + ------------------------------------------------------------ + 1.1234567891234500000000000000000000000000000000000000000 + (1 row) + + SELECT to_char(float8 '1999999999999999999999999999999999999999999999.123456789123456789', + repeat('9', 50) || '.' || repeat('9', 50)); + to_char + -------------------------------------------------------------------------------------------------------- + 1999999999999990000000000000000000000000000000.00000000000000000000000000000000000000000000000000 + (1 row) + + SELECT to_char(float8 '0.1', '9D' || repeat('9', 1000)); + to_char + --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + .1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 + (1 row) + + SELECT to_char(int4 '1', '9D' || repeat('9', 1000) || 'EEEE'); + to_char + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + 1.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e+00 + (1 row) + + SELECT to_char(float4 '1', '9D' || repeat('9', 1000) || 'EEEE'); + to_char + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + 1.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e+00 + (1 row) + + SELECT to_char(float8 '1', '9D' || repeat('9', 1000) || 'EEEE'); + to_char + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + 1.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e+00 + (1 row) + diff --git a/src/test/regress/expected/window.out b/src/test/regress/expected/window.out new file mode 100644 index 19f909f..79e65f6 *** a/src/test/regress/expected/window.out --- b/src/test/regress/expected/window.out *************** SELECT to_char(SUM(n::float8) OVER (ORDE *** 1806,1812 **** FROM (VALUES(1,1e20),(2,1)) n(i,n); to_char -------------------------- ! 100000000000000000000 1.0 (2 rows) --- 1806,1812 ---- FROM (VALUES(1,1e20),(2,1)) n(i,n); to_char -------------------------- ! 100000000000000000000.0 1.0 (2 rows) diff --git a/src/test/regress/sql/numeric.sql b/src/test/regress/sql/numeric.sql new file mode 100644 index 1633e4c..a6301ea *** a/src/test/regress/sql/numeric.sql --- b/src/test/regress/sql/numeric.sql *************** select (i / (10::numeric ^ 131071))::num *** 858,860 **** --- 858,877 ---- select * from generate_series(1::numeric, 3::numeric) i, generate_series(i,3) j; select * from generate_series(1::numeric, 3::numeric) i, generate_series(1,i) j; select * from generate_series(1::numeric, 3::numeric) i, generate_series(1,5,i) j; + + -- + -- Test code path for high-precision output + -- + + SELECT to_char(float8 '99999999999', '9999999999999999D99999999'); + SELECT to_char(float8 '99999999999', '9999999999999999D' || repeat('9', 1000)); + SELECT to_char(float8 '1e9','999999999999999999999D9'); + SELECT to_char(float8 '1e20','999999999999999999999D9'); + SELECT to_char(1e20, '999999999999999999999D9'); + SELECT to_char(float8 '1.123456789123456789', '9.' || repeat('9', 55)); + SELECT to_char(float8 '1999999999999999999999999999999999999999999999.123456789123456789', + repeat('9', 50) || '.' || repeat('9', 50)); + SELECT to_char(float8 '0.1', '9D' || repeat('9', 1000)); + SELECT to_char(int4 '1', '9D' || repeat('9', 1000) || 'EEEE'); + SELECT to_char(float4 '1', '9D' || repeat('9', 1000) || 'EEEE'); + SELECT to_char(float8 '1', '9D' || repeat('9', 1000) || 'EEEE');