Hi, On Sat, Oct 29, 2022 at 09:43:51PM +0800, jacktby@xxxxxxxxx wrote: > ------=_001_NextPart037628267087_=---- > Content-Type: text/html; charset="utf-8" > Content-Transfer-Encoding: quoted-printable > > <html><head></head><body><div class=3D"">Yes,I just want to know if I add a= > m in pg_am.dat, after I make install, it means the new access method is bui= > lt? right?</div><div> </div><hr style=3D"WIDTH: 210px; HEIGHT: 1px" co= > lor=3D"#b5c4df" size=3D"1" align=3D"left"><div><span><div style=3D"MARGIN: = > 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"><div>jacktby@xxxxxxxxx</div></= > div></span></div><blockquote style=3D"margin-Top: 0px; margin-Bottom: 0px; = > margin-Left: 0.5em; margin-Right: inherit"><div> </div><div style=3D"b= > order:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div s= > tyle=3D"PADDING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 12px;FONT-FAMILY:= > tahoma;COLOR:#000000; BACKGROUND: #efefef; PADDING-BOTTOM: 8px; PADDING-TOP= > : 8px"><div><b>From:</b> <a href=3D"mailto:rjuju123@xxxxxxxxx">Julien = > Rouhaud</a></div><div><b>Date:</b> 2022-10-29 21:27</div><div><b>= > To:</b> <a href=3D"mailto:jacktby@xxxxxxxxx">jacktby@xxxxxxxxx</a></di= > v><div><b>CC:</b> <a href=3D"mailto:hjp-pgsql@xxxxxx">Peter J. Holzer<= > /a>; <a href=3D"mailto:pgsql-general@xxxxxxxxxxxxxxxxxxxx">pgsql-general</a= > ></div><div><b>Subject:</b> Re: access method xxx does not exist</div>= > </div></div><div><div class=3D""><style>div.FoxDIV_20221029212802774 { font= > -size: 10.5pt } > </style><div style=3D"heigh First, please don't top post here and configure your MUA to stop sending html-only weirdly formatted emails (https://wiki.postgresql.org/wiki/Mailing_Lists#Email_etiquette_mechanics), many people (and the archives) can't work with it. Then, yes it should but it's impossible to know what you did wrong without more details. And in any case, if you want to add a new index AM, you should probably create it as an extension, like bloom, rather than putting in postgres source code.