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Commit1e3e1ae

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Remove gram.y's precedence declaration for OVERLAPS.
The allowed syntax for OVERLAPS, viz "row OVERLAPS row", is sufficientlyconstrained that we don't actually need a precedence declaration forOVERLAPS; indeed removing this declaration does not change the generatedgram.c file at all. Let's remove it to avoid confusion about whetherOVERLAPS has precedence or not. If we ever generalize what we allow forOVERLAPS, we might need to put back a precedence declaration for it,but we might want some other level than what it has today --- and leavingthe declaration there would just risk confusion about whether that wouldbe an incompatible change.Likewise, remove OVERLAPS from the documentation's precedence table.Per discussion with Noah Misch. Back-patch to 9.5 where we hacked up somenearby precedence decisions.
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‎doc/src/sgml/syntax.sgml

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@@ -1069,12 +1069,6 @@ SELECT (5 !) - 6;
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<entry>all other native and user-defined operators</entry>
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</row>
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<row>
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<entry><token>OVERLAPS</token></entry>
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<entry></entry>
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<entry>time interval overlap</entry>
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</row>
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<row>
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<entry><token>BETWEEN</token> <token>IN</token> <token>LIKE</token> <token>ILIKE</token> <token>SIMILAR</token></entry>
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<entry></entry>

‎src/backend/parser/gram.y

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@@ -673,7 +673,6 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
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%nonassoc'<''>''='LESS_EQUALSGREATER_EQUALSNOT_EQUALS
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%nonassocBETWEENIN_PLIKEILIKESIMILARNOT_LA
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%nonassocESCAPE/* ESCAPE must be just above LIKE/ILIKE/SIMILAR*/
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%nonassocOVERLAPS
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%leftPOSTFIXOP/* dummy for postfix Op rules*/
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/*
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* To support target_el without AS, we must give IDENT an explicit priority

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