mirror of https://github.com/postgres/postgres
Don't elide blank lines when accumulating psql command history.
This can change the meaning of queries, if the blank line happens to occur in the middle of a quoted literal, as per complaint from Tomas Vondra. Back-patch to all supported branches.
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@ -86,10 +86,10 @@ void
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pg_append_history(const char *s, PQExpBuffer history_buf)
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{
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#ifdef USE_READLINE
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if (useHistory && s && s[0])
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if (useHistory && s)
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{
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appendPQExpBufferStr(history_buf, s);
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if (s[strlen(s) - 1] != '\n')
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if (!s[0] || s[strlen(s) - 1] != '\n')
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appendPQExpBufferChar(history_buf, '\n');
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}
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#endif
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