RumbleDB 1.15.0 "Ivory Palm"

• Fixed jn:intersect#1 to always be run locally
• General performance improvements for many expressions and iterators that return at most one item
• New builtin functions supported: fn:min#2, fn:max#2, fn:unordered#1, fn:distinct-values#2, fn:index-of#3, fn:deep-equal#3, fn:string#0, fn:string#1, fn:substring-before#3, fn:substring-after#3, fn:string-length#0, fn:resolve-uri#1, fn:resolve-uri#2, fn:ends-width#3, fn:starts-width#3, fn:contains#3, , fn:normalize-space#0, fn:default-collation#0, fn:number#0, fn:implicit-timezone#0, fn:not#0, fn:static-base-uri#1, fn:dateTime#2, fn:false#0, fn:true#0
• all JSONiq builtin types are now supported: newly supported are byte, dateTimeStamp, gDay, gMonth, gYear, gYearMonth, gMonthDay, int, long, negativeInteger, nonNegativeInteger, positiveInteger, nonPositiveInteger, unsignedInt, unsignedLong, unsignedByte, unsignedShort, short,
• ceiling, floor, round, abs, round-half-to-even are now correctly in the fn namespace (not math) and all accept numeric values (instead of converting everything to doubles) and a few bugs have been fixed
• support for open object types via the JSound verbose syntax (they are, of course, not implemented as DataFrames, but this makes no difference at the syntactic level except they cannot be used with ML estimators and transformers)
• support for user-defined array types via the JSound verbose syntax, including subtypes
• validation of atomic values is now correctly done by casting the lexical value (not the typed value) to the expected type.
• Fixed serialization of NaN, double/float infinity, dates, etc (the quotes are now correctly included to make them JSON strings)
• positive and negative zero (for double, float) now compare as equals in value/general comparison

Note that Spark 2.4.x is no longer maintained. We provide rumbledb-1.15.0-for-spark-2.jar only for legacy purposes for a smooth transition, and recommend instead using Spark 3.0.x or 3.1.x with the rumbledb-1.15.0.jar package.