[SOLR-13632] Support integral plots, cosine distance and string truncation with math expressions

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Resolved
• Fix Version/s: 8.3
• Component/s: streaming expressions
• Assignee: Joel Bernstein
• Reporter: Joel Bernstein
• Created: 15/Jul/19 02:20
• Updated: 30/Sep/19 00:42
• Resolved: 30/Sep/19 00:41

Description

This ticket does the following:

• Changes the "integrate" function name to integral and makes the function return a vector of cumulative integrals for the entire curve if it is called without the range parameters.
• Add the CosineDistance Streaming Evaluator
• Add the trunc stream evaluator to return truncated strings.

Issue Links

• is related to: SOLR-10651 Streaming Expressions statistical functions library