Tables in PDF are not rendered correctly

[dveeden]

Error Report

1. What is the URL/path of the document related to this issue?

Example:

• Online/HTML: https://docs.pingcap.com/tidb/stable/release-7.5.0

• PDF: https://download.pingcap.org/tidb-stable-en-manual.pdf

2. How would you like to improve it?

[dveeden]

With a newer PanDoc / XeLaTeX versions things are better, but not good enough yet.

$ rpm -qf /usr/bin/xelatex /usr/bin/pandoc
texlive-xetex-svn66203-77.fc39.x86_64
pandoc-3.1.3-25.fc39.x86_64

See also #5634

[curiousRay]

@dveeden
This is due to pandoc won't parse <table>...</table> in a markdown file.
Please refer to: https://tex.stackexchange.com/questions/631243/how-to-render-html-tables-in-markdown-using-pandoc
Newer version of pandoc supports custom lua filters, may be a remedy.

[curiousRay]

Meanwhile, I found <rowspan> in many markdown files, for example:
https://github.com/pingcap/docs/blob/0a0a21cf07e7b4f43b884e99f3665a3746dcb5f3/dm/dm-ddl-compatible.md?plain=1#L28

<rowspan> and <colspan> are not supported by markdown generator, nor originally does pandoc.
But it is said that pandoc's lua filters support this.