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Fix two typos.
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@ -149,7 +149,7 @@ Development History
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introduced an interesting data structure suitable for sets -
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RD-tree (Russian Doll tree). Further research lead us to the
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idea to use GiST for implementing RD-tree, but at that time the
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GiST code was intouched for a long time and contained several
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GiST code was untouched for a long time and contained several
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bugs. After work on improving GiST for version 7.0.3 of
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PostgreSQL was done, we were able to implement RD-Tree and use
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it for index access to arrays of integers. This implementation
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@ -159,7 +159,7 @@ Development History
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by a single bit-signature, a so-called superimposed signature
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(see "Index Structures for Databases Containing Data Items with
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Set-valued Attributes", 1997, Sven Helmer for details). We
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developeded the contrib/intarray module and used it for full
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developed the contrib/intarray module and used it for full
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text indexing.
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tsearch v1
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