Re: Inquiry on Generating Bitmaps from Filter Conditions in Index Scans

2023-11-20 Thread Jinjing Zhou
into the amgettuples process, instead of checking the tuples one by one to accelerate the whole process.  Best Jinjing Zhou > From: "Tomas Vondra" > Date: Mon, Nov 20, 2023, 18:52 > Subject: Re: Inquiry on Generating Bitmaps from Filter Conditions in Index > Scans > To:

Re: Inquiry on Generating Bitmaps from Filter Conditions in Index Scans

2023-11-20 Thread Jinjing Zhou
Best Jinjing Zhou > From: "Matthias van de Meent" > Date: Mon, Nov 20, 2023, 19:33 > Subject: Re: Inquiry on Generating Bitmaps from Filter Conditions in Index > Scans > To: "Jinjing Zhou" > Cc: "pgsql-hackers@lists.postgresql.org" > On Mon, 20 Nov

Re: Inquiry on Generating Bitmaps from Filter Conditions in Index Scans

2023-11-20 Thread Matthias van de Meent
On Mon, 20 Nov 2023 at 09:30, Jinjing Zhou wrote: > > Hi hackers, > > I hope this message finds you well. I am reaching out to seek guidance on a > specific aspect of PostgreSQL's index scanning functionality. > > I am currently working on a vector search extension for postgres, where I > need t

Re: Inquiry on Generating Bitmaps from Filter Conditions in Index Scans

2023-11-20 Thread Tomas Vondra
On 11/19/23 18:19, Jinjing Zhou wrote: > Hi hackers,  > > I hope this message finds you well. I am reaching out to seek guidance > on a specific aspect of PostgreSQL's index scanning functionality. > > I am currently working on a vector search extension for postgres, where > I need to generate

Inquiry on Generating Bitmaps from Filter Conditions in Index Scans

2023-11-20 Thread Jinjing Zhou
Hi hackers,  I hope this message finds you well. I am reaching out to seek guidance on a specific aspect of PostgreSQL's index scanning functionality. I am currently working on a vector search extension for postgres, where I need to generate bitmaps based on filter conditions during an index sc