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e8c435a824
Mention that there are multiple TOAST compression methods and that the compression method used is stored in a TOAST pointer along with the other information that was stored there previously. Add a reference to the documentation for default_toast_compression, where the supported methods are listed, instead of duplicating that here. I haven't tried to preserve the text claiming that pglz is "fairly simple and very fast." I have no view on the veracity of the former claim, but LZ4 seems to be faster (and to compress better) so it seems better not to muddy the waters by talking about compression speed as a strong point of PGLZ. Patch by me, reviewed by Justin Pryzby. Discussion: http://postgr.es/m/CA+Tgmoaw_YBwQhOS_hhEPPwFhfAnu+VCLs18EfGr9gQw1z4H-w@mail.gmail.com |
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