The semantic convention family as first call citizen revealed that the
current state of the query builder needs a bit refactoring for long term
maintenance.
The `FieldMapper` and `ConditionBuilder` are now one abstraction
`Storage`.
A storage now answers
- what the compiler cannot know i.e one read per field key (the bare
SQL, the membership present or absent, what an absent row reads, and
whether the read keeps its type or filters only).
- the fallback for a key metadata does not report
- its traits
- and one Condition compilation part.
And we introduce a new type to use in the system, `Resolved`
```
// Resolved is what resolution produces for one key: its meanings, and how
// they came to be. It is the only thing the compilers receive. Compile it
// with the operator and value it was resolved with.
type Resolved struct {
Key *telemetrytypes.TelemetryFieldKey
Fields []*telemetrytypes.LogicalField
// FromFallback: the fields came from the storage's fallback, not from
// metadata matches.
FromFallback bool
// Ambiguous: the matches held several interpretations.
Ambiguous bool
// Skipped: the storage contributes nothing for this key.
Skipped bool
Warnings []string
}
```
The prepared SQL has no changes, where it changed, it specifically made
the expression better by removing the redundant part.
- The prepared SQL remains identical with this refactoring
- No changes to integration tests
Assisted-by: Claude Fable 5.1
#### Description
- A referenced name in a trace query now resolves to a `LogicalField`
(#12499): one field, addressed by the requested spelling, backed by its
physical member keys. A semantic-convention family
(`deployment.environment.name` / `deployment.environment`) merges into
one expression with current-wins precedence; the response keeps the
requested spelling.
- `FieldMapper` gets one new method, `ExistsFor` (the per-key presence
primitive). `LogicalValueExpr` and `LogicalExistsExpr` build all family
SQL in one place from `FieldFor` and `ExistsFor`; no signal implements
family logic.
- Statement builders prefetch sibling spellings; the metadata store
stays family-blind and autocomplete stays literal. Traces and the
resource filter compile per logical field; logs, metrics, and the other
signals keep their SQL unchanged.
- The `resolve_semconv_families` feature flag (default: disabled) gates
all family behavior. With the flag off, the generated SQL is the same as
main; tests pin this. Part of #6143.
#### Additional Information
- Stack: #12441 (merged) → **#12442** → #12443 → #12444 → #12445 →
#12446 → #12447. This layer bases on main.
- Rollback: turn the flag off; stored telemetry is untouched.
Remove the statementbuilder.Builders aggregate. The querier chain (querier.New,
signozquerier.NewFactory, NewQuerierProviderFactories) now takes the six per-signal
statement builders individually, and signoz.go::newQueryStack returns them directly
via a plain multi-return. The statementbuilder package is now config-only.
Remove each <signal>statementbuilder/new.go and fold its NewFactory into that
package's statement_builder.go (traces' NewOperatorFactory into
trace_operator_statement_builder.go), giving the layout: struct -> NewFactory ->
New<X>QueryStatementBuilder.
Split the five telemetry<signal> packages, which mixed three concerns, into
three per-signal layers with a cycle-free dependency direction:
- telemetryschema/<signal>telemetryschema — primitives (const + table
selection, field_mapper, condition_builder, trace helpers); leaf layer.
- statementbuilder/<signal>statementbuilder — SQL generation. The parent
statementbuilder package is contract-only (the Builders bundle + Config);
each sub-package exposes a factory.ProviderFactory[..., statementbuilder.Config]
whose New internalizes FieldMapper/ConditionBuilder/AggExprRewriter and reads
SkipResourceFingerprint. Traces exposes two factories (query + operator).
telemetryresourcefilter moves here as statementbuilder/resourcefilter.
- telemetrymetadata — key/value resolution; NewTelemetryMetaStore collapses
from 24 args to (settings, telemetrystore, flagger), sourcing table names
from the schema constants.
Centralize query-stack assembly in signoz.go via newQueryStack: build the
single metadata store, run each per-signal statement-builder factory, assemble
the statementbuilder.Builders bundle, and build the bucket cache — once. This
is the only place that imports the concrete sub-packages (so the edge runs
subs -> parent, cycle-free), and it removes the duplicate metadata store that
signozquerier used to build, leaving signozquerier a thin
querier.New(*statementbuilder.Builders) adapter.
Also:
- statementbuilder.Config owns SkipResourceFingerprint (moved off
querier.Config). YAML key moves querier.skip_resource_fingerprint ->
statementbuilder.skip_resource_fingerprint.
- Querier interface moves into querier.go (interfaces.go removed); BucketCache
-> bucket_cache.go, Handler -> api.go.
- Add pkg/querier/queriertest.MockQuerier.
