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Commitbd74c40

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Re-allow underscore as first character of custom GUC names.
Commit3db826b intended that valid_custom_variable_name'srules for valid identifiers match those of scan.l. However,I (tgl) had some kind of brain fade and put "_" in the wronglist.Fix by Japin Li, per bug #17415 from Daniel Polski.Discussion:https://postgr.es/m/17415-ebdb683d7e09a51c@postgresql.org
1 parent0475a97 commitbd74c40

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  • src/backend/utils/misc

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‎src/backend/utils/misc/guc.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -5474,13 +5474,13 @@ valid_custom_variable_name(const char *name)
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name_start= true;
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}
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elseif (strchr("ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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"abcdefghijklmnopqrstuvwxyz",*p)!=NULL||
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"abcdefghijklmnopqrstuvwxyz_",*p)!=NULL||
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IS_HIGHBIT_SET(*p))
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{
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/* okay as first or non-first character */
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name_start= false;
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}
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elseif (!name_start&&strchr("0123456789_$",*p)!=NULL)
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elseif (!name_start&&strchr("0123456789$",*p)!=NULL)
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/* okay as non-first character */ ;
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else
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return false;

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