v.0.2.0

New in v.0.2.0

• Deadlock analysis
  Choose from a session lane view or a SSMS x QPI view of how operators created a deadlock scenario.
  Step through the process in session lanes.
  Don't have a deadlock to hand? We have you covered providing examples on how to interpret 5 different types of deadlocks.

• Enhanced help files
  Help files have been improved and are now available offline, and with more images.

• New Settings screen
  With the addition of deadlock analysis functionality a redesign of how settings are viewed was warranted. This will allow for easier expansion later on.

• Additional filters
  Made it easier to view plan findings by adding in filters based on severity.
  Created groups in plan operator properties which can now be expanded/collapsed.
  Hide defaults options in plan properties. This reduces the work users have to do to spot a potential issue.

QPI 0.1.1

Query Performance Investigator

Alpha version of Query Performance Investigator - A new way of understanding SQL Server execution plans.

QPI will be a leader in the query analysis space. It transforms complex execution data into clear, actionable insights so you can diagnose problems faster, optimise with confidence, and go to bed earlier - if that's your thing.

Built for people who live in the real world of sloooow queries, opaque execution plans, and urgent production troubleshooting, QPI turns complex performance issues into something easier to inspect, understand, and act on. It doesn't force you to manually trawl through raw plan details and disconnected metrics like other tools do. QPI is designed to surface the information that matters, helping DBAs, developers, and performance engineers move from “something is slow” to “here is where to look next.”

Whether you are investigating regressions, exploring plan operators, or trying to explain performance issues to a wider team, QPI aims to make query tuning more visual, more systematic, and far less painful.

Less guesswork. Faster diagnosis. Better queries.

Help files can be found here - https://dataibase.co.uk/products/query-performance-investigator/help/

Changes in this version:

• Updated dependencies to remove vulnerabilities.
• Added extra property values to operators.
• Fixed plan operator card sizing issue.
• Fixed an issue where some lookups were being shown as index seeks.
• Some internal refactoring and linting.

QPI 0.1.0

Query Performance Investigator

Initial Alpha version of Query Performance Investigator - A new way of understanding SQL Server execution plans.

QPI will be a leader in the query analysis space. It transforms complex execution data into clear, actionable insights so you can diagnose problems faster, optimise with confidence, and go to bed earlier - if that's your thing.

Built for people who live in the real world of sloooow queries, opaque execution plans, and urgent production troubleshooting, QPI turns complex performance issues into something easier to inspect, understand, and act on. It doesn't force you to manually trawl through raw plan details and disconnected metrics like other tools do. QPI is designed to surface the information that matters, helping DBAs, developers, and performance engineers move from “something is slow” to “here is where to look next.”

Whether you are investigating regressions, exploring plan operators, or trying to explain performance issues to a wider team, QPI aims to make query tuning more visual, more systematic, and far less painful.

Less guesswork. Faster diagnosis. Better queries.

Help files can be found here - https://dataibase.co.uk/products/query-performance-investigator/help/