MySQL raises EE_COLLATION_PARSER_ERROR (code 85) when it cannot parse or recognize the collation specified in a SQL statement or internal metadata.
MySQL Error 85 EE_COLLATION_PARSER_ERROR occurs when the server cannot parse the requested collation name, often due to typos or unavailable collations. Check the collation list with SHOW COLLATION and correct or install the required collation to resolve the problem.
%s. EE_COLLATION_PARSER_ERROR was added in 8.0.13.
MySQL throws the global error code 85 when its parser encounters an invalid or unsupported collation name while compiling a statement or reading metadata. The error was introduced in MySQL 8.0.13 and is typically surfaced as: EE_COLLATION_PARSER_ERROR: %s, where %s contains the faulty collation string.
Collations define how strings are compared and sorted. If the server cannot interpret the collation token, execution stops and error 85 is returned.
Fixing the issue is essential because incorrect collations can corrupt textual data ordering, hinder index usage, and break application logic.
The error arises during SQL compilation, metadata loading, or replication apply phases. Statements such as CREATE TABLE ... COLLATE xyz, ALTER TABLE ... CONVERT TO CHARACTER SET ... COLLATE xyz, and stored routine definitions are common triggers.
Replication or import operations also fail if they reference a collation absent on the target server.
Leaving the error unresolved blocks schema changes, data imports, or query execution, stalling deployments and damaging uptime. Inconsistent collations between environments can silently corrupt string comparisons, leading to incorrect query results and performance degradation.
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Run SHOW COLLATION; or filter by character set with SHOW COLLATION WHERE Charset = 'utf8mb4';.
No. MySQL does not support user-defined collations. You must upgrade or install official components providing the needed collation.
Yes. A replica lacking the source collation will stop with the same error when applying a statement that references it.
Galaxy’s AI copilot autocompletes valid collations, flags unknown names during linting, and suggests available alternatives, reducing parser errors before a query is run.
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