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< p class = 'location' > Trait MentatStoring< / p > < div class = "sidebar-elems" > < div class = "block items" > < a class = "sidebar-title" href = "#required-methods" > Required Methods< / a > < div class = "sidebar-links" > < a href = "#tymethod.resolve_avs" > resolve_avs< / a > < a href = "#tymethod.begin_tx_application" > begin_tx_application< / a > < a href = "#tymethod.insert_non_fts_searches" > insert_non_fts_searches< / a > < a href = "#tymethod.insert_fts_searches" > insert_fts_searches< / a > < a href = "#tymethod.commit_transaction" > commit_transaction< / a > < a href = "#tymethod.committed_metadata_assertions" > committed_metadata_assertions< / a > < / div > < a class = "sidebar-title" href = "#foreign-impls" > Implementations on Foreign Types< / a > < div class = "sidebar-links" > < a href = "#impl-MentatStoring" > Connection< / a > < / div > < a class = "sidebar-title" href = "#implementors" > Implementors< / a > < / div > < p class = 'location' > < a href = '../index.html' > mentat_db< / a > ::< wbr > < a href = 'index.html' > db< / a > < / p > < script > window . sidebarCurrent = { name : 'MentatStoring' , ty : 'trait' , relpath : '' } ; < / script > < script defer src = "sidebar-items.js" > < / script > < / div >
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< section id = 'main' class = "content" > < h1 class = 'fqn' > < span class = 'in-band' > Trait < a href = '../index.html' > mentat_db< / a > ::< wbr > < a href = 'index.html' > db< / a > ::< wbr > < a class = "trait" href = '' > MentatStoring< / a > < / span > < span class = 'out-of-band' > < span id = 'render-detail' >
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< / span > < a class = 'srclink' href = '../../src/mentat_db/db.rs.html#499-528' title = 'goto source code' > [src]< / a > < / span > < / h1 > < div class = "docblock type-decl" > < pre class = 'rust trait' > pub trait MentatStoring {
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fn < a href = '#tymethod.resolve_avs' class = 'fnname' > resolve_avs< / a > < 'a> (& self, avs: < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > & 'a [< / a > & 'a < a class = "type" href = "../../mentat_db/types/type.AVPair.html" title = "type mentat_db::types::AVPair" > AVPair< / a > < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > ]< / a > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "type" href = "../../mentat_db/types/type.AVMap.html" title = "type mentat_db::types::AVMap" > AVMap< / a > < 'a> > ;
< div class = 'item-spacer' > < / div > fn < a href = '#tymethod.begin_tx_application' class = 'fnname' > begin_tx_application< / a > (& self) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > ;
< div class = 'item-spacer' > < / div > fn < a href = '#tymethod.insert_non_fts_searches' class = 'fnname' > insert_non_fts_searches< / a > < 'a> (< br > & self, < br > entities: < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > & 'a [< / a > < a class = "type" href = "../../mentat_db/db/type.ReducedEntity.html" title = "type mentat_db::db::ReducedEntity" > ReducedEntity< / a > < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > ]< / a > , < br > search_type: < a class = "enum" href = "../../mentat_db/db/enum.SearchType.html" title = "enum mentat_db::db::SearchType" > SearchType< / a > < br > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > ;
< div class = 'item-spacer' > < / div > fn < a href = '#tymethod.insert_fts_searches' class = 'fnname' > insert_fts_searches< / a > < 'a> (< br > & self, < br > entities: < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > & 'a [< / a > < a class = "type" href = "../../mentat_db/db/type.ReducedEntity.html" title = "type mentat_db::db::ReducedEntity" > ReducedEntity< / a > < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > ]< / a > , < br > search_type: < a class = "enum" href = "../../mentat_db/db/enum.SearchType.html" title = "enum mentat_db::db::SearchType" > SearchType< / a > < br > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > ;
< div class = 'item-spacer' > < / div > fn < a href = '#tymethod.commit_transaction' class = 'fnname' > commit_transaction< / a > (& self, tx_id: < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > ;
< div class = 'item-spacer' > < / div > fn < a href = '#tymethod.committed_metadata_assertions' class = 'fnname' > committed_metadata_assertions< / a > (< br > & self, < br > tx_id: < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > < br > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "struct" href = "https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title = "struct alloc::vec::Vec" > Vec< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.tuple.html" > (< / a > < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > , < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > , < a class = "enum" href = "../../mentat_db/types/enum.TypedValue.html" title = "enum mentat_db::types::TypedValue" > TypedValue< / a > , < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.bool.html" > bool< / a > < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.tuple.html" > )< / a > > > ;
}< / pre > < / div > < div class = 'docblock' > < p > < code > MentatStoring< / code > will be the trait that encapsulates the storage layer. It is consumed by the
transaction processing layer.< / p >
< p > Right now, the only implementation of < code > MentatStoring< / code > is the SQLite-specific SQL schema. In the
future, we might consider other SQL engines (perhaps with different fulltext indexing), or
entirely different data stores, say ones shaped like key-value stores.< / p >
< / div >
< h2 id = 'required-methods' class = 'small-section-header' >
Required Methods< a href = '#required-methods' class = 'anchor' > < / a >
< / h2 >
< div class = 'methods' >
< h3 id = 'tymethod.resolve_avs' class = 'method' > < span id = 'resolve_avs.v' class = 'invisible' > < code > fn < a href = '#tymethod.resolve_avs' class = 'fnname' > resolve_avs< / a > < 'a> (& self, avs: < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > & 'a [< / a > & 'a < a class = "type" href = "../../mentat_db/types/type.AVPair.html" title = "type mentat_db::types::AVPair" > AVPair< / a > < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > ]< / a > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "type" href = "../../mentat_db/types/type.AVMap.html" title = "type mentat_db::types::AVMap" > AVMap< / a > < 'a> > < / code > < / span > < / h3 > < div class = 'docblock' > < p > Given a slice of [a v] lookup-refs, look up the corresponding [e a v] triples.< / p >
< p > It is assumed that the attribute < code > a< / code > in each lookup-ref is < code > :db/unique< / code > , so that at most one
matching [e a v] triple exists. (If this is not true, some matching entid < code > e< / code > will be
chosen non-deterministically, if one exists.)< / p >
< p > Returns a map & (a, v) -> e, to avoid cloning potentially large values. The keys of the map
are exactly those (a, v) pairs that have an assertion [e a v] in the store.< / p >
< / div > < h3 id = 'tymethod.begin_tx_application' class = 'method' > < span id = 'begin_tx_application.v' class = 'invisible' > < code > fn < a href = '#tymethod.begin_tx_application' class = 'fnname' > begin_tx_application< / a > (& self) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > < / code > < / span > < / h3 > < div class = 'docblock' > < p > Begin (or prepare) the underlying storage layer for a new Mentat transaction.< / p >
< p > Use this to create temporary tables, prepare indices, set pragmas, etc, before the initial
< code > insert_non_fts_searches< / code > invocation.< / p >
< / div > < h3 id = 'tymethod.insert_non_fts_searches' class = 'method' > < span id = 'insert_non_fts_searches.v' class = 'invisible' > < code > fn < a href = '#tymethod.insert_non_fts_searches' class = 'fnname' > insert_non_fts_searches< / a > < 'a> (< br > & self, < br > entities: < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > & 'a [< / a > < a class = "type" href = "../../mentat_db/db/type.ReducedEntity.html" title = "type mentat_db::db::ReducedEntity" > ReducedEntity< / a > < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > ]< / a > , < br > search_type: < a class = "enum" href = "../../mentat_db/db/enum.SearchType.html" title = "enum mentat_db::db::SearchType" > SearchType< / a > < br > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > < / code > < / span > < / h3 > < h3 id = 'tymethod.insert_fts_searches' class = 'method' > < span id = 'insert_fts_searches.v' class = 'invisible' > < code > fn < a href = '#tymethod.insert_fts_searches' class = 'fnname' > insert_fts_searches< / a > < 'a> (< br > & self, < br > entities: < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > & 'a [< / a > < a class = "type" href = "../../mentat_db/db/type.ReducedEntity.html" title = "type mentat_db::db::ReducedEntity" > ReducedEntity< / a > < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > ]< / a > , < br > search_type: < a class = "enum" href = "../../mentat_db/db/enum.SearchType.html" title = "enum mentat_db::db::SearchType" > SearchType< / a > < br > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > < / code > < / span > < / h3 > < h3 id = 'tymethod.commit_transaction' class = 'method' > < span id = 'commit_transaction.v' class = 'invisible' > < code > fn < a href = '#tymethod.commit_transaction' class = 'fnname' > commit_transaction< / a > (& self, tx_id: < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > < / code > < / span > < / h3 > < div class = 'docblock' > < p > Finalize the underlying storage layer after a Mentat transaction.< / p >
< p > Use this to finalize temporary tables, complete indices, revert pragmas, etc, after the
final < code > insert_non_fts_searches< / code > invocation.< / p >
< / div > < h3 id = 'tymethod.committed_metadata_assertions' class = 'method' > < span id = 'committed_metadata_assertions.v' class = 'invisible' > < code > fn < a href = '#tymethod.committed_metadata_assertions' class = 'fnname' > committed_metadata_assertions< / a > (< br > & self, < br > tx_id: < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > < br > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "struct" href = "https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title = "struct alloc::vec::Vec" > Vec< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.tuple.html" > (< / a > < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > , < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > , < a class = "enum" href = "../../mentat_db/types/enum.TypedValue.html" title = "enum mentat_db::types::TypedValue" > TypedValue< / a > , < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.bool.html" > bool< / a > < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.tuple.html" > )< / a > > > < / code > < / span > < / h3 > < div class = 'docblock' > < p > Extract metadata-related [e a typed_value added] datoms committed in the given transaction.< / p >
< / div > < / div >
< h2 id = 'foreign-impls' class = 'small-section-header' >
Implementations on Foreign Types< a href = '#foreign-impls' class = 'anchor' > < / a >
< / h2 >
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< h3 id = 'impl-MentatStoring' class = 'impl' > < span class = 'in-band' > < table class = 'table-display' > < tbody > < tr > < td > < code > impl < a class = "trait" href = "../../mentat_db/db/trait.MentatStoring.html" title = "trait mentat_db::db::MentatStoring" > MentatStoring< / a > for Connection< / code > < a href = '#impl-MentatStoring' class = 'anchor' > < / a > < / span > < / td > < td > < span class = 'out-of-band' > < div class = 'ghost' > < / div > < a class = 'srclink' href = '../../src/mentat_db/db.rs.html#638-969' title = 'goto source code' > [src]< / a > < / span > < / td > < / tr > < / tbody > < / table > < / h3 > < span class = 'docblock autohide' > < div class = 'impl-items' > < h4 id = 'method.resolve_avs' class = "method" > < span id = 'resolve_avs.v-1' class = 'invisible' > < table class = 'table-display' > < tbody > < tr > < td > < code > fn < a href = '#method.resolve_avs' class = 'fnname' > resolve_avs< / a > < 'a> (& self, avs: < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > & 'a [< / a > & 'a < a class = "type" href = "../../mentat_db/types/type.AVPair.html" title = "type mentat_db::types::AVPair" > AVPair< / a > < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > ]< / a > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "type" href = "../../mentat_db/types/type.AVMap.html" title = "type mentat_db::types::AVMap" > AVMap< / a > < 'a> > < / code > < / span > < / td > < td > < span class = 'out-of-band' > < div class = 'ghost' > < / div > < a class = 'srclink' href = '../../src/mentat_db/db.rs.html#639-703' title = 'goto source code' > [src]< / a > < / td > < / tr > < / tbody > < / table > < / span > < / h4 > < h4 id = 'method.begin_tx_application' class = "method" > < span id = 'begin_tx_application.v-1' class = 'invisible' > < table class = 'table-display' > < tbody > < tr > < td > < code > fn < a href = '#method.begin_tx_application' class = 'fnname' > begin_tx_application< / a > (& self) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > < / code > < / span > < / td > < td > < span class = 'out-of-band' > < div class = 'ghost' > < / div > < a class = 'srclink' href = '../../src/mentat_db/db.rs.html#706-765' title = 'goto source code' > [src]< / a > < / td > < / tr > < / tbody > < / table > < / span > < / h4 > < div class = 'docblock' > < p > Create empty temporary tables for search parameters and search results.< / p >
< / div > < h4 id = 'method.insert_non_fts_searches' class = "method" > < span id = 'insert_non_fts_searches.v-1' class = 'invisible' > < table class = 'table-display' > < tbody > < tr > < td > < code > fn < a href = '#method.insert_non_fts_searches' class = 'fnname' > insert_non_fts_searches< / a > < 'a> (< br > & self, < br > entities: < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > & 'a [< / a > < a class = "type" href = "../../mentat_db/db/type.ReducedEntity.html" title = "type mentat_db::db::ReducedEntity" > ReducedEntity< / a > < 'a> < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > ]< / a > , < br > search_type: < a class = "enum" href = "../../mentat_db/db/enum.SearchType.html" title = "enum mentat_db::db::SearchType" > SearchType< / a > < br > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > < / code > < / span > < / td > < td > < span class = 'out-of-band' > < div class = 'ghost' > < / div > < a class = 'srclink' href = '../../src/mentat_db/db.rs.html#771-830' title = 'goto source code' > [src]< / a > < / td > < / tr > < / tbody > < / table > < / span > < / h4 > < div class = 'docblock' > < p > Insert search rows into temporary search tables.< / p >
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< p > Eventually, the details of this approach will be captured in
https://github.com/mozilla/mentat/wiki/Transacting:-entity-to-SQL-translation.< / p >
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< / div > < h4 id = 'method.insert_fts_searches' class = "method" > < span id = 'insert_fts_searches.v-1' class = 'invisible' > < table class = 'table-display' > < tbody > < tr > < td > < code > fn < a href = '#method.insert_fts_searches' class = 'fnname' > insert_fts_searches< / a > < 'a> (< br > & self, < br > entities: < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > & 'a [< / a > < a class = "type" href = "../../mentat_db/db/type.ReducedEntity.html" title = "type mentat_db::db::ReducedEntity" > ReducedEntity< / a > < 'a> < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.slice.html" > ]< / a > , < br > search_type: < a class = "enum" href = "../../mentat_db/db/enum.SearchType.html" title = "enum mentat_db::db::SearchType" > SearchType< / a > < br > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > < / code > < / span > < / td > < td > < span class = 'out-of-band' > < div class = 'ghost' > < / div > < a class = 'srclink' href = '../../src/mentat_db/db.rs.html#836-948' title = 'goto source code' > [src]< / a > < / td > < / tr > < / tbody > < / table > < / span > < / h4 > < div class = 'docblock' > < p > Insert search rows into temporary search tables.< / p >
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< p > Eventually, the details of this approach will be captured in
https://github.com/mozilla/mentat/wiki/Transacting:-entity-to-SQL-translation.< / p >
2018-06-29 17:28:44 +00:00
< / div > < h4 id = 'method.commit_transaction' class = "method" > < span id = 'commit_transaction.v-1' class = 'invisible' > < table class = 'table-display' > < tbody > < tr > < td > < code > fn < a href = '#method.commit_transaction' class = 'fnname' > commit_transaction< / a > (& self, tx_id: < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.unit.html" > ()< / a > > < / code > < / span > < / td > < td > < span class = 'out-of-band' > < div class = 'ghost' > < / div > < a class = 'srclink' href = '../../src/mentat_db/db.rs.html#950-955' title = 'goto source code' > [src]< / a > < / td > < / tr > < / tbody > < / table > < / span > < / h4 > < h4 id = 'method.committed_metadata_assertions' class = "method" > < span id = 'committed_metadata_assertions.v-1' class = 'invisible' > < table class = 'table-display' > < tbody > < tr > < td > < code > fn < a href = '#method.committed_metadata_assertions' class = 'fnname' > committed_metadata_assertions< / a > (< br > & self, < br > tx_id: < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > < br > ) -> < a class = "type" href = "../../mentat_db/errors/type.Result.html" title = "type mentat_db::errors::Result" > Result< / a > < < a class = "struct" href = "https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title = "struct alloc::vec::Vec" > Vec< / a > < < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.tuple.html" > (< / a > < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > , < a class = "type" href = "../../mentat_db/types/type.Entid.html" title = "type mentat_db::types::Entid" > Entid< / a > , < a class = "enum" href = "../../mentat_db/types/enum.TypedValue.html" title = "enum mentat_db::types::TypedValue" > TypedValue< / a > , < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.bool.html" > bool< / a > < a class = "primitive" href = "https://doc.rust-lang.org/nightly/std/primitive.tuple.html" > )< / a > > > < / code > < / span > < / td > < td > < span class = 'out-of-band' > < div class = 'ghost' > < / div > < a class = 'srclink' href = '../../src/mentat_db/db.rs.html#957-968' title = 'goto source code' > [src]< / a > < / td > < / tr > < / tbody > < / table > < / span > < / h4 > < / div > < / span >
2018-06-25 10:20:36 +00:00
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