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Add test for pgSphere output precision with different settings
expected/output_precision.out - PG 10-11 expected/output_precision_1.out - PG 12+
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‎Makefile

+2-1
Original file line numberDiff line numberDiff line change
@@ -40,7 +40,8 @@ DATA_built = $(RELEASE_SQL) \
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DOCS = README.pg_sphere COPYRIGHT.pg_sphere
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TESTS = version tables points euler circle line ellipse poly path box \
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index contains_ops contains_ops_compat bounding_box_gist gnomo \
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epochprop contains overlaps spoint_brin sbox_brin selectivity knn
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epochprop contains overlaps spoint_brin sbox_brin selectivity \
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knn output_precision
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REGRESS = init $(TESTS)
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PG_CFLAGS += -DPGSPHERE_VERSION=$(PGSPHERE_VERSION)

‎expected/output_precision.out

+212
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,212 @@
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--
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-- Test default and custom output precisions for double values.
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--
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SELECT set_sphere_output( 'RAD' );
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set_sphere_output
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-------------------
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SET RAD
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(1 row)
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--
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-- Check default precision
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--
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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------------------------------------------
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(0.272707695624114 , 0.0181805130416076)
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(1 row)
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--
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-- Check option extra_float_digits
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--
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SET extra_float_digits TO -6;
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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-----------------------------
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(0.272707696 , 0.018180513)
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(1 row)
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SET extra_float_digits TO -2;
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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--------------------------------------
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(0.2727076956241 , 0.01818051304161)
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(1 row)
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SET extra_float_digits TO 0;
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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------------------------------------------
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(0.272707695624114 , 0.0181805130416076)
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(1 row)
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SET extra_float_digits TO 1;
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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------------------------------------------
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(0.272707695624114 , 0.0181805130416076)
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(1 row)
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SET extra_float_digits TO 2;
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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----------------------------------------------
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(0.27270769562411401 , 0.018180513041607602)
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(1 row)
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SET extra_float_digits TO 3;
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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-----------------------------------------------
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(0.27270769562411401 , 0.0181805130416076016)
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(1 row)
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SET extra_float_digits TO 6;
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ERROR: 6 is outside the valid range for parameter "extra_float_digits" (-15 .. 3)
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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-----------------------------------------------
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(0.27270769562411401 , 0.0181805130416076016)
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(1 row)
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--
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-- Check compatibility behaviour
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--
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SELECT set_sphere_output_precision(10);
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set_sphere_output_precision
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-----------------------------
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SET 10
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(1 row)
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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--------------------------------
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(0.2727076956 , 0.01818051304)
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(1 row)
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SELECT set_sphere_output_precision(12);
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set_sphere_output_precision
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-----------------------------
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SET 12
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(1 row)
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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------------------------------------
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(0.272707695624 , 0.0181805130416)
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(1 row)
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SELECT set_sphere_output_precision(15);
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set_sphere_output_precision
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-----------------------------
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SET 15
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(1 row)
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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------------------------------------------
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(0.272707695624114 , 0.0181805130416076)
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(1 row)
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SELECT set_sphere_output_precision(17);
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set_sphere_output_precision
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-----------------------------
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SET 15
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(1 row)
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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------------------------------------------
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(0.272707695624114 , 0.0181805130416076)
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(1 row)
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SELECT set_sphere_output_precision(20);
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set_sphere_output_precision
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-----------------------------
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SET 15
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(1 row)
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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------------------------------------------
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(0.272707695624114 , 0.0181805130416076)
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(1 row)
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SELECT set_sphere_output_precision(0);
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set_sphere_output_precision
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-----------------------------
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SET 15
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(1 row)
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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------------------------------------------
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(0.272707695624114 , 0.0181805130416076)
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(1 row)
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SELECT set_sphere_output_precision(-3);
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set_sphere_output_precision
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-----------------------------
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SET 15
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(1 row)
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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------------------------------------------
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(0.272707695624114 , 0.0181805130416076)
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(1 row)
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--
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-- Check extra_float_digits after set_sphere_output_precision.
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-- The change of extra_float_digits should not affect the precision of pgsphere
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-- output because set_sphere_output_precision enables compatibility mode.
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--
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SELECT set_sphere_output_precision(10);
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set_sphere_output_precision
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-----------------------------
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SET 10
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(1 row)
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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--------------------------------
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(0.2727076956 , 0.01818051304)
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(1 row)
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SET extra_float_digits TO -6;
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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--------------------------------
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(0.2727076956 , 0.01818051304)
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(1 row)
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SET extra_float_digits TO -10;
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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--------------------------------
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(0.2727076956 , 0.01818051304)
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(1 row)
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--
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-- Check reset_sphere_output_precision.
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-- It should disable compatibility mode - extra_float_digits should work.
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--
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SELECT reset_sphere_output_precision();
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reset_sphere_output_precision
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-------------------------------
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RESET
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(1 row)
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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----------------------
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(0.27271 , 0.018181)
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(1 row)
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SET extra_float_digits TO -6;
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SELECT '( 1h 2m 30s , +1d 2m 30s)'::spoint;
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spoint
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-----------------------------
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(0.272707696 , 0.018180513)
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(1 row)
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