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mdbx: minor update README.

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Change-Id: I15edbc2572a57e80634347b272d354cda6cc13c4
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Leonid Yuriev 2020-01-15 21:05:02 +03:00
parent 1c4653d466
commit 20b09820c9
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@ -127,7 +127,7 @@ transaction journal. No crash recovery needed. No maintenance is required.
- **Page size**: a power of 2, maximum `65536` bytes, default `4096` bytes. - **Page size**: a power of 2, maximum `65536` bytes, default `4096` bytes.
- **Key size**: minimum 0, maximum ≈¼ pagesize (`1300` bytes for default 4K pagesize, `21780` bytes for 64K pagesize). - **Key size**: minimum 0, maximum ≈¼ pagesize (`1300` bytes for default 4K pagesize, `21780` bytes for 64K pagesize).
- **Value size**: minimum 0, maximum `2146435072` (`0x7FF00000`) bytes for maps, ≈¼ pagesize for multimaps (`1348` bytes default 4K pagesize, `21828` bytes for 64K pagesize). - **Value size**: minimum 0, maximum `2146435072` (`0x7FF00000`) bytes for maps, ≈¼ pagesize for multimaps (`1348` bytes default 4K pagesize, `21828` bytes for 64K pagesize).
- **Write transaction size**: up to `4194301` (`0x3FFFFD`) pages (16 [GiB](https://en.wikipedia.org/wiki/Gibibyte) for pagesize, 256 [GiB](https://en.wikipedia.org/wiki/Gibibyte) for 64K pagesize). - **Write transaction size**: up to `4194301` (`0x3FFFFD`) pages (16 [GiB](https://en.wikipedia.org/wiki/Gibibyte) for default 4K pagesize, 256 [GiB](https://en.wikipedia.org/wiki/Gibibyte) for 64K pagesize).
- **Database size**: up to `2147483648` pages (8 [TiB](https://en.wikipedia.org/wiki/Tebibyte) for default 4K pagesize, 128 [TiB](https://en.wikipedia.org/wiki/Tebibyte) for 64K pagesize). - **Database size**: up to `2147483648` pages (8 [TiB](https://en.wikipedia.org/wiki/Tebibyte) for default 4K pagesize, 128 [TiB](https://en.wikipedia.org/wiki/Tebibyte) for 64K pagesize).
- **Maximum sub-databases**: `32765`. - **Maximum sub-databases**: `32765`.