Documentation
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Overview ¶
Package keyenc is the one escaping composite WaveHouse keys are built from: NATS subject tokens, cache keys and dedupe keys. A field keeps ASCII letters, digits, '_' and '-' as they are and writes every other byte as %XX (uppercase hex), so no separator, wildcard, whitespace, brace or non-ASCII byte ever appears in it unescaped, and any table name ClickHouse accepts encodes. The bytes it keeps are exactly a tenant id's (tenant.Parse), so a tenant id is its own escaped form.
Keys built from it are stored — queued under NATS subjects, held in caches, kept as dedupe keys — so a change to what it keeps orphans them; an orphaned dedupe key lets a seen id through again. Earlier builds escaped '-' as %2D; Unescape still reads that form.
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
func AppendEscape ¶
AppendEscape appends Escape(s) to dst.
func AppendJoin ¶
AppendJoin appends Join(sep, fields...) to dst.
func Join ¶
Join escapes each field and joins them with sep. It panics on no fields, whose key would be one empty field's, and on a separator Escape could write.
Types ¶
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Source Files