docs - fix GUC name optimizer_penalize_skewed_hashjoin -> optimizer_penalize_skew
<li>
<xref href="#optimizer_parallel_union" type="section"
>optimizer_parallel_union</xref></li>
- <li><xref href="#optimizer_penalize_skewed_hashjoin" type="section"
- >optimizer_penalize_skewed_hashjoin</xref></li>
+ <li><xref href="#optimizer_penalize_skew" type="section"
+ >optimizer_penalize_skew</xref></li>
<li>
<xref href="#optimizer_print_missing_stats" type="section"
>optimizer_print_missing_stats</xref>
