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Code coverage comparisons confirm that the tests using quad_poly_tbl_ord_seq1/quad_poly_tbl_ord_idx1 hit no code paths not also covered by the similar tests using quad_poly_tbl_ord_seq2/quad_poly_tbl_ord_idx2. Since these test cases are pretty expensive, they need to contribute more than zero benefit. In passing, make quad_poly_tbl_ord_seq2 a temp table, since there seems little reason to keep it around after the test. Discussion: https://postgr.es/m/735.1554935715@sss.pgh.pa.us
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